Home / 113,325,387.40-169,988,081.10-90,650,571.40

Finding the Fourth Proportional to 113,325,387.40, 169,988,081.10 and 90,650,571.40

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Solution

The fourth proportional to 113,325,387.40, 169,988,081.10 and 90,650,571.40 is: 135,975,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,325,387.40 : 169,988,081.10 = 90,650,571.40 : x
  2. Step 2: Convert to fraction form
    113,325,387.40/169,988,081.10 = 90,650,571.40/x
  3. Step 3: Cross multiply
    113,325,387.40x = 169,988,081.10 × 90,650,571.40
  4. Step 4: Simplify right side
    113,325,387.40x = 15,409,516,682,904,542
  5. Step 5: Solve for x
    x = 15,409,516,682,904,542/113,325,387.40
  6. Step 6: Final answer
    x = 135,975,857.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.