Home / 132,531.38-198,860.86-65,977.32

Finding the Fourth Proportional to 132,531.38, 198,860.86 and 65,977.32

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Solution

The fourth proportional to 132,531.38, 198,860.86 and 65,977.32 is: 98,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,531.38 : 198,860.86 = 65,977.32 : x
  2. Step 2: Convert to fraction form
    132,531.38/198,860.86 = 65,977.32/x
  3. Step 3: Cross multiply
    132,531.38x = 198,860.86 × 65,977.32
  4. Step 4: Simplify right side
    132,531.38x = 13,120,306,595.70
  5. Step 5: Solve for x
    x = 13,120,306,595.70/132,531.38
  6. Step 6: Final answer
    x = 98,997.74

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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.