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Finding the Fourth Proportional to 135,414.40, 203,121.60 and 132,822.40

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Solution

The fourth proportional to 135,414.40, 203,121.60 and 132,822.40 is: 199,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,414.40 : 203,121.60 = 132,822.40 : x
  2. Step 2: Convert to fraction form
    135,414.40/203,121.60 = 132,822.40/x
  3. Step 3: Cross multiply
    135,414.40x = 203,121.60 × 132,822.40
  4. Step 4: Simplify right side
    135,414.40x = 26,979,098,403.84
  5. Step 5: Solve for x
    x = 26,979,098,403.84/135,414.40
  6. Step 6: Final answer
    x = 199,233.60

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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.