Home / 138,358.62-207,410.31-54,176.13

Finding the Fourth Proportional to 138,358.62, 207,410.31 and 54,176.13

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Solution

The fourth proportional to 138,358.62, 207,410.31 and 54,176.13 is: 81,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,358.62 : 207,410.31 = 54,176.13 : x
  2. Step 2: Convert to fraction form
    138,358.62/207,410.31 = 54,176.13/x
  3. Step 3: Cross multiply
    138,358.62x = 207,410.31 × 54,176.13
  4. Step 4: Simplify right side
    138,358.62x = 11,236,687,917.90
  5. Step 5: Solve for x
    x = 11,236,687,917.90/138,358.62
  6. Step 6: Final answer
    x = 81,214.22

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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.