Home / 132,375.60-198,563.40-121,489.20

Finding the Fourth Proportional to 132,375.60, 198,563.40 and 121,489.20

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Solution

The fourth proportional to 132,375.60, 198,563.40 and 121,489.20 is: 182,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,375.60 : 198,563.40 = 121,489.20 : x
  2. Step 2: Convert to fraction form
    132,375.60/198,563.40 = 121,489.20/x
  3. Step 3: Cross multiply
    132,375.60x = 198,563.40 × 121,489.20
  4. Step 4: Simplify right side
    132,375.60x = 24,123,308,615.28
  5. Step 5: Solve for x
    x = 24,123,308,615.28/132,375.60
  6. Step 6: Final answer
    x = 182,233.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.