Home / 225,922.20-338,839.56-76,146.72

Finding the Fourth Proportional to 225,922.20, 338,839.56 and 76,146.72

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Solution

The fourth proportional to 225,922.20, 338,839.56 and 76,146.72 is: 114,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,922.20 : 338,839.56 = 76,146.72 : x
  2. Step 2: Convert to fraction form
    225,922.20/338,839.56 = 76,146.72/x
  3. Step 3: Cross multiply
    225,922.20x = 338,839.56 × 76,146.72
  4. Step 4: Simplify right side
    225,922.20x = 25,801,521,100.24
  5. Step 5: Solve for x
    x = 25,801,521,100.24/225,922.20
  6. Step 6: Final answer
    x = 114,205.34

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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.