Home / 198,586.80-274,049.28-107,942.76

Finding the Fourth Proportional to 198,586.80, 274,049.28 and 107,942.76

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Solution

The fourth proportional to 198,586.80, 274,049.28 and 107,942.76 is: 148,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,586.80 : 274,049.28 = 107,942.76 : x
  2. Step 2: Convert to fraction form
    198,586.80/274,049.28 = 107,942.76/x
  3. Step 3: Cross multiply
    198,586.80x = 274,049.28 × 107,942.76
  4. Step 4: Simplify right side
    198,586.80x = 29,581,635,659.21
  5. Step 5: Solve for x
    x = 29,581,635,659.21/198,586.80
  6. Step 6: Final answer
    x = 148,960.73

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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.