Home / 125,149.12-172,706.40-68,560.52

Finding the Fourth Proportional to 125,149.12, 172,706.40 and 68,560.52

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Solution

The fourth proportional to 125,149.12, 172,706.40 and 68,560.52 is: 94,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.12 : 172,706.40 = 68,560.52 : x
  2. Step 2: Convert to fraction form
    125,149.12/172,706.40 = 68,560.52/x
  3. Step 3: Cross multiply
    125,149.12x = 172,706.40 × 68,560.52
  4. Step 4: Simplify right side
    125,149.12x = 11,840,840,591.33
  5. Step 5: Solve for x
    x = 11,840,840,591.33/125,149.12
  6. Step 6: Final answer
    x = 94,613.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.