Home / 159,387.55-219,966.23-89,542.53

Finding the Fourth Proportional to 159,387.55, 219,966.23 and 89,542.53

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Solution

The fourth proportional to 159,387.55, 219,966.23 and 89,542.53 is: 123,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,387.55 : 219,966.23 = 89,542.53 : x
  2. Step 2: Convert to fraction form
    159,387.55/219,966.23 = 89,542.53/x
  3. Step 3: Cross multiply
    159,387.55x = 219,966.23 × 89,542.53
  4. Step 4: Simplify right side
    159,387.55x = 19,696,332,972.62
  5. Step 5: Solve for x
    x = 19,696,332,972.62/159,387.55
  6. Step 6: Final answer
    x = 123,575.11

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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.