Home / 508,112.08-762,168.39-129,061.24

Finding the Fourth Proportional to 508,112.08, 762,168.39 and 129,061.24

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Solution

The fourth proportional to 508,112.08, 762,168.39 and 129,061.24 is: 193,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,112.08 : 762,168.39 = 129,061.24 : x
  2. Step 2: Convert to fraction form
    508,112.08/762,168.39 = 129,061.24/x
  3. Step 3: Cross multiply
    508,112.08x = 762,168.39 × 129,061.24
  4. Step 4: Simplify right side
    508,112.08x = 98,366,397,502.20
  5. Step 5: Solve for x
    x = 98,366,397,502.20/508,112.08
  6. Step 6: Final answer
    x = 193,591.93

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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.