Home / 508,103.19-762,155.09-129,052.35

Finding the Fourth Proportional to 508,103.19, 762,155.09 and 129,052.35

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Solution

The fourth proportional to 508,103.19, 762,155.09 and 129,052.35 is: 193,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,103.19 : 762,155.09 = 129,052.35 : x
  2. Step 2: Convert to fraction form
    508,103.19/762,155.09 = 129,052.35/x
  3. Step 3: Cross multiply
    508,103.19x = 762,155.09 × 129,052.35
  4. Step 4: Simplify right side
    508,103.19x = 98,357,905,267.65
  5. Step 5: Solve for x
    x = 98,357,905,267.65/508,103.19
  6. Step 6: Final answer
    x = 193,578.60

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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.