Home / 157,731.73-217,688.89-89,765.24

Finding the Fourth Proportional to 157,731.73, 217,688.89 and 89,765.24

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Solution

The fourth proportional to 157,731.73, 217,688.89 and 89,765.24 is: 123,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,731.73 : 217,688.89 = 89,765.24 : x
  2. Step 2: Convert to fraction form
    157,731.73/217,688.89 = 89,765.24/x
  3. Step 3: Cross multiply
    157,731.73x = 217,688.89 × 89,765.24
  4. Step 4: Simplify right side
    157,731.73x = 19,540,895,456.18
  5. Step 5: Solve for x
    x = 19,540,895,456.18/157,731.73
  6. Step 6: Final answer
    x = 123,886.90

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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.