Home / 198,521.11-273,958.92-107,876.86

Finding the Fourth Proportional to 198,521.11, 273,958.92 and 107,876.86

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Solution

The fourth proportional to 198,521.11, 273,958.92 and 107,876.86 is: 148,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,521.11 : 273,958.92 = 107,876.86 : x
  2. Step 2: Convert to fraction form
    198,521.11/273,958.92 = 107,876.86/x
  3. Step 3: Cross multiply
    198,521.11x = 273,958.92 × 107,876.86
  4. Step 4: Simplify right side
    198,521.11x = 29,553,826,149.41
  5. Step 5: Solve for x
    x = 29,553,826,149.41/198,521.11
  6. Step 6: Final answer
    x = 148,869.95

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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.