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Finding the Fourth Proportional to 159,781.38, 220,502.92 and 88,166.02

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Solution

The fourth proportional to 159,781.38, 220,502.92 and 88,166.02 is: 121,671.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,781.38 : 220,502.92 = 88,166.02 : x
  2. Step 2: Convert to fraction form
    159,781.38/220,502.92 = 88,166.02/x
  3. Step 3: Cross multiply
    159,781.38x = 220,502.92 × 88,166.02
  4. Step 4: Simplify right side
    159,781.38x = 19,440,864,579.04
  5. Step 5: Solve for x
    x = 19,440,864,579.04/159,781.38
  6. Step 6: Final answer
    x = 121,671.65

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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.