Home / 138,217.01-207,302.38-38,387.30

Finding the Fourth Proportional to 138,217.01, 207,302.38 and 38,387.30

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Solution

The fourth proportional to 138,217.01, 207,302.38 and 38,387.30 is: 57,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,217.01 : 207,302.38 = 38,387.30 : x
  2. Step 2: Convert to fraction form
    138,217.01/207,302.38 = 38,387.30/x
  3. Step 3: Cross multiply
    138,217.01x = 207,302.38 × 38,387.30
  4. Step 4: Simplify right side
    138,217.01x = 7,957,777,519.29
  5. Step 5: Solve for x
    x = 7,957,777,519.29/138,217.01
  6. Step 6: Final answer
    x = 57,574.52

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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.