Home / 157,951.31-217,972.76-89,974.58

Finding the Fourth Proportional to 157,951.31, 217,972.76 and 89,974.58

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Solution

The fourth proportional to 157,951.31, 217,972.76 and 89,974.58 is: 124,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,951.31 : 217,972.76 = 89,974.58 : x
  2. Step 2: Convert to fraction form
    157,951.31/217,972.76 = 89,974.58/x
  3. Step 3: Cross multiply
    157,951.31x = 217,972.76 × 89,974.58
  4. Step 4: Simplify right side
    157,951.31x = 19,612,005,992.70
  5. Step 5: Solve for x
    x = 19,612,005,992.70/157,951.31
  6. Step 6: Final answer
    x = 124,164.89

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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.