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Finding the Fourth Proportional to 132,172.56, 198,289.62 and 43,425.72

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Solution

The fourth proportional to 132,172.56, 198,289.62 and 43,425.72 is: 65,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,172.56 : 198,289.62 = 43,425.72 : x
  2. Step 2: Convert to fraction form
    132,172.56/198,289.62 = 43,425.72/x
  3. Step 3: Cross multiply
    132,172.56x = 198,289.62 × 43,425.72
  4. Step 4: Simplify right side
    132,172.56x = 8,610,869,517.03
  5. Step 5: Solve for x
    x = 8,610,869,517.03/132,172.56
  6. Step 6: Final answer
    x = 65,148.69

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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.