Home / 198,565.76-274,022.85-107,921.73

Finding the Fourth Proportional to 198,565.76, 274,022.85 and 107,921.73

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Solution

The fourth proportional to 198,565.76, 274,022.85 and 107,921.73 is: 148,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,565.76 : 274,022.85 = 107,921.73 : x
  2. Step 2: Convert to fraction form
    198,565.76/274,022.85 = 107,921.73/x
  3. Step 3: Cross multiply
    198,565.76x = 274,022.85 × 107,921.73
  4. Step 4: Simplify right side
    198,565.76x = 29,573,019,491.92
  5. Step 5: Solve for x
    x = 29,573,019,491.92/198,565.76
  6. Step 6: Final answer
    x = 148,933.13

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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.