Home / 157,787.83-217,767.78-89,791.57

Finding the Fourth Proportional to 157,787.83, 217,767.78 and 89,791.57

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Solution

The fourth proportional to 157,787.83, 217,767.78 and 89,791.57 is: 123,924.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,787.83 : 217,767.78 = 89,791.57 : x
  2. Step 2: Convert to fraction form
    157,787.83/217,767.78 = 89,791.57/x
  3. Step 3: Cross multiply
    157,787.83x = 217,767.78 × 89,791.57
  4. Step 4: Simplify right side
    157,787.83x = 19,553,710,861.61
  5. Step 5: Solve for x
    x = 19,553,710,861.61/157,787.83
  6. Step 6: Final answer
    x = 123,924.07

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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.