Home / 132,528.72-198,672.24-85,156.68

Finding the Fourth Proportional to 132,528.72, 198,672.24 and 85,156.68

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Solution

The fourth proportional to 132,528.72, 198,672.24 and 85,156.68 is: 127,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,528.72 : 198,672.24 = 85,156.68 : x
  2. Step 2: Convert to fraction form
    132,528.72/198,672.24 = 85,156.68/x
  3. Step 3: Cross multiply
    132,528.72x = 198,672.24 × 85,156.68
  4. Step 4: Simplify right side
    132,528.72x = 16,918,268,366.56
  5. Step 5: Solve for x
    x = 16,918,268,366.56/132,528.72
  6. Step 6: Final answer
    x = 127,657.37

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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.