Home / 132,648.10-198,680.55-79,965.70

Finding the Fourth Proportional to 132,648.10, 198,680.55 and 79,965.70

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Solution

The fourth proportional to 132,648.10, 198,680.55 and 79,965.70 is: 119,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,648.10 : 198,680.55 = 79,965.70 : x
  2. Step 2: Convert to fraction form
    132,648.10/198,680.55 = 79,965.70/x
  3. Step 3: Cross multiply
    132,648.10x = 198,680.55 × 79,965.70
  4. Step 4: Simplify right side
    132,648.10x = 15,887,629,257.14
  5. Step 5: Solve for x
    x = 15,887,629,257.14/132,648.10
  6. Step 6: Final answer
    x = 119,772.76

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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.