Home / 215,691.18-323,625.66-89,356.86

Finding the Fourth Proportional to 215,691.18, 323,625.66 and 89,356.86

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Solution

The fourth proportional to 215,691.18, 323,625.66 and 89,356.86 is: 134,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,691.18 : 323,625.66 = 89,356.86 : x
  2. Step 2: Convert to fraction form
    215,691.18/323,625.66 = 89,356.86/x
  3. Step 3: Cross multiply
    215,691.18x = 323,625.66 × 89,356.86
  4. Step 4: Simplify right side
    215,691.18x = 28,918,172,793.03
  5. Step 5: Solve for x
    x = 28,918,172,793.03/215,691.18
  6. Step 6: Final answer
    x = 134,072.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.