Home / 125,134.51-172,687.89-68,542.24

Finding the Fourth Proportional to 125,134.51, 172,687.89 and 68,542.24

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Solution

The fourth proportional to 125,134.51, 172,687.89 and 68,542.24 is: 94,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,134.51 : 172,687.89 = 68,542.24 : x
  2. Step 2: Convert to fraction form
    125,134.51/172,687.89 = 68,542.24/x
  3. Step 3: Cross multiply
    125,134.51x = 172,687.89 × 68,542.24
  4. Step 4: Simplify right side
    125,134.51x = 11,836,414,801.47
  5. Step 5: Solve for x
    x = 11,836,414,801.47/125,134.51
  6. Step 6: Final answer
    x = 94,589.53

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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.