Home / 125,321.14-172,943.40-68,732.92

Finding the Fourth Proportional to 125,321.14, 172,943.40 and 68,732.92

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Solution

The fourth proportional to 125,321.14, 172,943.40 and 68,732.92 is: 94,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,321.14 : 172,943.40 = 68,732.92 : x
  2. Step 2: Convert to fraction form
    125,321.14/172,943.40 = 68,732.92/x
  3. Step 3: Cross multiply
    125,321.14x = 172,943.40 × 68,732.92
  4. Step 4: Simplify right side
    125,321.14x = 11,886,904,876.73
  5. Step 5: Solve for x
    x = 11,886,904,876.73/125,321.14
  6. Step 6: Final answer
    x = 94,851.55

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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.