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Finding the Fourth Proportional to 157,558.81, 217,449.54 and 89,585.97

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Solution

The fourth proportional to 157,558.81, 217,449.54 and 89,585.97 is: 123,639.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.81 : 217,449.54 = 89,585.97 : x
  2. Step 2: Convert to fraction form
    157,558.81/217,449.54 = 89,585.97/x
  3. Step 3: Cross multiply
    157,558.81x = 217,449.54 × 89,585.97
  4. Step 4: Simplify right side
    157,558.81x = 19,480,427,966.95
  5. Step 5: Solve for x
    x = 19,480,427,966.95/157,558.81
  6. Step 6: Final answer
    x = 123,639.09

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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.