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Finding the Fourth Proportional to 132,978.44, 199,505.19 and 54,149.24

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Solution

The fourth proportional to 132,978.44, 199,505.19 and 54,149.24 is: 81,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,978.44 : 199,505.19 = 54,149.24 : x
  2. Step 2: Convert to fraction form
    132,978.44/199,505.19 = 54,149.24/x
  3. Step 3: Cross multiply
    132,978.44x = 199,505.19 × 54,149.24
  4. Step 4: Simplify right side
    132,978.44x = 10,803,054,414.56
  5. Step 5: Solve for x
    x = 10,803,054,414.56/132,978.44
  6. Step 6: Final answer
    x = 81,239.14

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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.