Home / 198,419.88-273,822.39-107,777.61

Finding the Fourth Proportional to 198,419.88, 273,822.39 and 107,777.61

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Solution

The fourth proportional to 198,419.88, 273,822.39 and 107,777.61 is: 148,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,419.88 : 273,822.39 = 107,777.61 : x
  2. Step 2: Convert to fraction form
    198,419.88/273,822.39 = 107,777.61/x
  3. Step 3: Cross multiply
    198,419.88x = 273,822.39 × 107,777.61
  4. Step 4: Simplify right side
    198,419.88x = 29,511,922,758.69
  5. Step 5: Solve for x
    x = 29,511,922,758.69/198,419.88
  6. Step 6: Final answer
    x = 148,734.71

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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.