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Finding the Fourth Proportional to 157,781.00, 217,756.40 and 88,872.71

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Solution

The fourth proportional to 157,781.00, 217,756.40 and 88,872.71 is: 122,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,781.00 : 217,756.40 = 88,872.71 : x
  2. Step 2: Convert to fraction form
    157,781.00/217,756.40 = 88,872.71/x
  3. Step 3: Cross multiply
    157,781.00x = 217,756.40 × 88,872.71
  4. Step 4: Simplify right side
    157,781.00x = 19,352,599,854.70
  5. Step 5: Solve for x
    x = 19,352,599,854.70/157,781.00
  6. Step 6: Final answer
    x = 122,654.82

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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.