Home / 138,060.24-206,819.71-71,544

Finding the Fourth Proportional to 138,060.24, 206,819.71 and 71,544

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Solution

The fourth proportional to 138,060.24, 206,819.71 and 71,544 is: 107,175.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,060.24 : 206,819.71 = 71,544 : x
  2. Step 2: Convert to fraction form
    138,060.24/206,819.71 = 71,544/x
  3. Step 3: Cross multiply
    138,060.24x = 206,819.71 × 71,544
  4. Step 4: Simplify right side
    138,060.24x = 14,796,709,332.24
  5. Step 5: Solve for x
    x = 14,796,709,332.24/138,060.24
  6. Step 6: Final answer
    x = 107,175.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.