Home / 198,057.60-273,320.64-113,177.76

Finding the Fourth Proportional to 198,057.60, 273,320.64 and 113,177.76

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Solution

The fourth proportional to 198,057.60, 273,320.64 and 113,177.76 is: 156,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,057.60 : 273,320.64 = 113,177.76 : x
  2. Step 2: Convert to fraction form
    198,057.60/273,320.64 = 113,177.76/x
  3. Step 3: Cross multiply
    198,057.60x = 273,320.64 × 113,177.76
  4. Step 4: Simplify right side
    198,057.60x = 30,933,817,796.97
  5. Step 5: Solve for x
    x = 30,933,817,796.97/198,057.60
  6. Step 6: Final answer
    x = 156,185.97

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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.