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Finding the Fourth Proportional to 113,325.40, 169,988.10 and 39,453.40

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Solution

The fourth proportional to 113,325.40, 169,988.10 and 39,453.40 is: 59,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,325.40 : 169,988.10 = 39,453.40 : x
  2. Step 2: Convert to fraction form
    113,325.40/169,988.10 = 39,453.40/x
  3. Step 3: Cross multiply
    113,325.40x = 169,988.10 × 39,453.40
  4. Step 4: Simplify right side
    113,325.40x = 6,706,608,504.54
  5. Step 5: Solve for x
    x = 6,706,608,504.54/113,325.40
  6. Step 6: Final answer
    x = 59,180.10

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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.