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Finding the Fourth Proportional to 138,552.79, 207,654.46 and 59,575.51

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Solution

The fourth proportional to 138,552.79, 207,654.46 and 59,575.51 is: 89,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,552.79 : 207,654.46 = 59,575.51 : x
  2. Step 2: Convert to fraction form
    138,552.79/207,654.46 = 59,575.51/x
  3. Step 3: Cross multiply
    138,552.79x = 207,654.46 × 59,575.51
  4. Step 4: Simplify right side
    138,552.79x = 12,371,120,358.27
  5. Step 5: Solve for x
    x = 12,371,120,358.27/138,552.79
  6. Step 6: Final answer
    x = 89,288.14

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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.