Home / 198,419.38-273,821.70-107,777.11

Finding the Fourth Proportional to 198,419.38, 273,821.70 and 107,777.11

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Solution

The fourth proportional to 198,419.38, 273,821.70 and 107,777.11 is: 148,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,419.38 : 273,821.70 = 107,777.11 : x
  2. Step 2: Convert to fraction form
    198,419.38/273,821.70 = 107,777.11/x
  3. Step 3: Cross multiply
    198,419.38x = 273,821.70 × 107,777.11
  4. Step 4: Simplify right side
    198,419.38x = 29,511,711,481.29
  5. Step 5: Solve for x
    x = 29,511,711,481.29/198,419.38
  6. Step 6: Final answer
    x = 148,734.02

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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.