Home / 225,915.20-338,763.36-68,114.24

Finding the Fourth Proportional to 225,915.20, 338,763.36 and 68,114.24

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Solution

The fourth proportional to 225,915.20, 338,763.36 and 68,114.24 is: 102,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,915.20 : 338,763.36 = 68,114.24 : x
  2. Step 2: Convert to fraction form
    225,915.20/338,763.36 = 68,114.24/x
  3. Step 3: Cross multiply
    225,915.20x = 338,763.36 × 68,114.24
  4. Step 4: Simplify right side
    225,915.20x = 23,074,608,806.25
  5. Step 5: Solve for x
    x = 23,074,608,806.25/225,915.20
  6. Step 6: Final answer
    x = 102,138.36

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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.