Home / 138,744.92-191,468.14-75,082.72

Finding the Fourth Proportional to 138,744.92, 191,468.14 and 75,082.72

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Solution

The fourth proportional to 138,744.92, 191,468.14 and 75,082.72 is: 103,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,744.92 : 191,468.14 = 75,082.72 : x
  2. Step 2: Convert to fraction form
    138,744.92/191,468.14 = 75,082.72/x
  3. Step 3: Cross multiply
    138,744.92x = 191,468.14 × 75,082.72
  4. Step 4: Simplify right side
    138,744.92x = 14,375,948,078.16
  5. Step 5: Solve for x
    x = 14,375,948,078.16/138,744.92
  6. Step 6: Final answer
    x = 103,614.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.