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Finding the Fourth Proportional to 159,874.71, 220,627.14 and 88,254.78

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Solution

The fourth proportional to 159,874.71, 220,627.14 and 88,254.78 is: 121,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,874.71 : 220,627.14 = 88,254.78 : x
  2. Step 2: Convert to fraction form
    159,874.71/220,627.14 = 88,254.78/x
  3. Step 3: Cross multiply
    159,874.71x = 220,627.14 × 88,254.78
  4. Step 4: Simplify right side
    159,874.71x = 19,471,400,254.30
  5. Step 5: Solve for x
    x = 19,471,400,254.30/159,874.71
  6. Step 6: Final answer
    x = 121,791.62

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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.