Home / 124,820.36-172,251.85-68,231.73

Finding the Fourth Proportional to 124,820.36, 172,251.85 and 68,231.73

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Solution

The fourth proportional to 124,820.36, 172,251.85 and 68,231.73 is: 94,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,820.36 : 172,251.85 = 68,231.73 : x
  2. Step 2: Convert to fraction form
    124,820.36/172,251.85 = 68,231.73/x
  3. Step 3: Cross multiply
    124,820.36x = 172,251.85 × 68,231.73
  4. Step 4: Simplify right side
    124,820.36x = 11,753,041,721.20
  5. Step 5: Solve for x
    x = 11,753,041,721.20/124,820.36
  6. Step 6: Final answer
    x = 94,159.65

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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.