Home / 92,120.09-138,065.92-65,423.50

Finding the Fourth Proportional to 92,120.09, 138,065.92 and 65,423.50

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Solution

The fourth proportional to 92,120.09, 138,065.92 and 65,423.50 is: 98,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,120.09 : 138,065.92 = 65,423.50 : x
  2. Step 2: Convert to fraction form
    92,120.09/138,065.92 = 65,423.50/x
  3. Step 3: Cross multiply
    92,120.09x = 138,065.92 × 65,423.50
  4. Step 4: Simplify right side
    92,120.09x = 9,032,755,208.40
  5. Step 5: Solve for x
    x = 9,032,755,208.40/92,120.09
  6. Step 6: Final answer
    x = 98,054.13

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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.