Home / 132,695.10-198,751.05-80,012.70

Finding the Fourth Proportional to 132,695.10, 198,751.05 and 80,012.70

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Solution

The fourth proportional to 132,695.10, 198,751.05 and 80,012.70 is: 119,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,695.10 : 198,751.05 = 80,012.70 : x
  2. Step 2: Convert to fraction form
    132,695.10/198,751.05 = 80,012.70/x
  3. Step 3: Cross multiply
    132,695.10x = 198,751.05 × 80,012.70
  4. Step 4: Simplify right side
    132,695.10x = 15,902,608,138.34
  5. Step 5: Solve for x
    x = 15,902,608,138.34/132,695.10
  6. Step 6: Final answer
    x = 119,843.22

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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.