Home / 124,976.80-172,465.68-68,387.04

Finding the Fourth Proportional to 124,976.80, 172,465.68 and 68,387.04

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Solution

The fourth proportional to 124,976.80, 172,465.68 and 68,387.04 is: 94,372.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,976.80 : 172,465.68 = 68,387.04 : x
  2. Step 2: Convert to fraction form
    124,976.80/172,465.68 = 68,387.04/x
  3. Step 3: Cross multiply
    124,976.80x = 172,465.68 × 68,387.04
  4. Step 4: Simplify right side
    124,976.80x = 11,794,417,356.79
  5. Step 5: Solve for x
    x = 11,794,417,356.79/124,976.80
  6. Step 6: Final answer
    x = 94,372.85

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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.