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Finding the Fourth Proportional to 132,654.31, 198,940.46 and 43,889.45

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Solution

The fourth proportional to 132,654.31, 198,940.46 and 43,889.45 is: 65,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,654.31 : 198,940.46 = 43,889.45 : x
  2. Step 2: Convert to fraction form
    132,654.31/198,940.46 = 43,889.45/x
  3. Step 3: Cross multiply
    132,654.31x = 198,940.46 × 43,889.45
  4. Step 4: Simplify right side
    132,654.31x = 8,731,386,158.00
  5. Step 5: Solve for x
    x = 8,731,386,158.00/132,654.31
  6. Step 6: Final answer
    x = 65,820.60

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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.