Home / 125,200.73-172,781.43-68,612.11

Finding the Fourth Proportional to 125,200.73, 172,781.43 and 68,612.11

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Solution

The fourth proportional to 125,200.73, 172,781.43 and 68,612.11 is: 94,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,200.73 : 172,781.43 = 68,612.11 : x
  2. Step 2: Convert to fraction form
    125,200.73/172,781.43 = 68,612.11/x
  3. Step 3: Cross multiply
    125,200.73x = 172,781.43 × 68,612.11
  4. Step 4: Simplify right side
    125,200.73x = 11,854,898,481.12
  5. Step 5: Solve for x
    x = 11,854,898,481.12/125,200.73
  6. Step 6: Final answer
    x = 94,687.14

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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.