Home / 508,122.08-762,183.40-129,071.24

Finding the Fourth Proportional to 508,122.08, 762,183.40 and 129,071.24

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Solution

The fourth proportional to 508,122.08, 762,183.40 and 129,071.24 is: 193,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,122.08 : 762,183.40 = 129,071.24 : x
  2. Step 2: Convert to fraction form
    508,122.08/762,183.40 = 129,071.24/x
  3. Step 3: Cross multiply
    508,122.08x = 762,183.40 × 129,071.24
  4. Step 4: Simplify right side
    508,122.08x = 98,375,956,545.42
  5. Step 5: Solve for x
    x = 98,375,956,545.42/508,122.08
  6. Step 6: Final answer
    x = 193,606.93

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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.