Home / 198,932.20-274,529.92-108,290.76

Finding the Fourth Proportional to 198,932.20, 274,529.92 and 108,290.76

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Solution

The fourth proportional to 198,932.20, 274,529.92 and 108,290.76 is: 149,443.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,932.20 : 274,529.92 = 108,290.76 : x
  2. Step 2: Convert to fraction form
    198,932.20/274,529.92 = 108,290.76/x
  3. Step 3: Cross multiply
    198,932.20x = 274,529.92 × 108,290.76
  4. Step 4: Simplify right side
    198,932.20x = 29,729,053,679.54
  5. Step 5: Solve for x
    x = 29,729,053,679.54/198,932.20
  6. Step 6: Final answer
    x = 149,443.15

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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.