Home / 225,921.20-338,772.36-68,120.24

Finding the Fourth Proportional to 225,921.20, 338,772.36 and 68,120.24

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Solution

The fourth proportional to 225,921.20, 338,772.36 and 68,120.24 is: 102,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,921.20 : 338,772.36 = 68,120.24 : x
  2. Step 2: Convert to fraction form
    225,921.20/338,772.36 = 68,120.24/x
  3. Step 3: Cross multiply
    225,921.20x = 338,772.36 × 68,120.24
  4. Step 4: Simplify right side
    225,921.20x = 23,077,254,468.57
  5. Step 5: Solve for x
    x = 23,077,254,468.57/225,921.20
  6. Step 6: Final answer
    x = 102,147.36

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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.