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Finding the Fourth Proportional to 132,326.40, 198,489.60 and 131,404.80

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Solution

The fourth proportional to 132,326.40, 198,489.60 and 131,404.80 is: 197,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,326.40 : 198,489.60 = 131,404.80 : x
  2. Step 2: Convert to fraction form
    132,326.40/198,489.60 = 131,404.80/x
  3. Step 3: Cross multiply
    132,326.40x = 198,489.60 × 131,404.80
  4. Step 4: Simplify right side
    132,326.40x = 26,082,486,190.08
  5. Step 5: Solve for x
    x = 26,082,486,190.08/132,326.40
  6. Step 6: Final answer
    x = 197,107.20

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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.