Home / 125,231.13-172,819.98-68,642.91

Finding the Fourth Proportional to 125,231.13, 172,819.98 and 68,642.91

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Solution

The fourth proportional to 125,231.13, 172,819.98 and 68,642.91 is: 94,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,231.13 : 172,819.98 = 68,642.91 : x
  2. Step 2: Convert to fraction form
    125,231.13/172,819.98 = 68,642.91/x
  3. Step 3: Cross multiply
    125,231.13x = 172,819.98 × 68,642.91
  4. Step 4: Simplify right side
    125,231.13x = 11,862,866,333.34
  5. Step 5: Solve for x
    x = 11,862,866,333.34/125,231.13
  6. Step 6: Final answer
    x = 94,727.78

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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.