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Finding the Fourth Proportional to 157,881.66, 217,876.89 and 89,898.66

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Solution

The fourth proportional to 157,881.66, 217,876.89 and 89,898.66 is: 124,060.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,881.66 : 217,876.89 = 89,898.66 : x
  2. Step 2: Convert to fraction form
    157,881.66/217,876.89 = 89,898.66/x
  3. Step 3: Cross multiply
    157,881.66x = 217,876.89 × 89,898.66
  4. Step 4: Simplify right side
    157,881.66x = 19,586,840,455.97
  5. Step 5: Solve for x
    x = 19,586,840,455.97/157,881.66
  6. Step 6: Final answer
    x = 124,060.26

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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.