Home / 125,044.35-172,449.44-91,131.88

Finding the Fourth Proportional to 125,044.35, 172,449.44 and 91,131.88

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Solution

The fourth proportional to 125,044.35, 172,449.44 and 91,131.88 is: 125,680.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,044.35 : 172,449.44 = 91,131.88 : x
  2. Step 2: Convert to fraction form
    125,044.35/172,449.44 = 91,131.88/x
  3. Step 3: Cross multiply
    125,044.35x = 172,449.44 × 91,131.88
  4. Step 4: Simplify right side
    125,044.35x = 15,715,641,216.49
  5. Step 5: Solve for x
    x = 15,715,641,216.49/125,044.35
  6. Step 6: Final answer
    x = 125,680.54

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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.