Home / 125,149.41-172,680.30-71,451.90

Finding the Fourth Proportional to 125,149.41, 172,680.30 and 71,451.90

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Solution

The fourth proportional to 125,149.41, 172,680.30 and 71,451.90 is: 98,588.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.41 : 172,680.30 = 71,451.90 : x
  2. Step 2: Convert to fraction form
    125,149.41/172,680.30 = 71,451.90/x
  3. Step 3: Cross multiply
    125,149.41x = 172,680.30 × 71,451.90
  4. Step 4: Simplify right side
    125,149.41x = 12,338,335,527.57
  5. Step 5: Solve for x
    x = 12,338,335,527.57/125,149.41
  6. Step 6: Final answer
    x = 98,588.84

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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.