Home / 124,976.38-172,467.40-68,387.76

Finding the Fourth Proportional to 124,976.38, 172,467.40 and 68,387.76

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Solution

The fourth proportional to 124,976.38, 172,467.40 and 68,387.76 is: 94,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,976.38 : 172,467.40 = 68,387.76 : x
  2. Step 2: Convert to fraction form
    124,976.38/172,467.40 = 68,387.76/x
  3. Step 3: Cross multiply
    124,976.38x = 172,467.40 × 68,387.76
  4. Step 4: Simplify right side
    124,976.38x = 11,794,659,159.02
  5. Step 5: Solve for x
    x = 11,794,659,159.02/124,976.38
  6. Step 6: Final answer
    x = 94,375.11

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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.