Home / 100,324.24-138,351.66-60,031.60

Finding the Fourth Proportional to 100,324.24, 138,351.66 and 60,031.60

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Solution

The fourth proportional to 100,324.24, 138,351.66 and 60,031.60 is: 82,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,324.24 : 138,351.66 = 60,031.60 : x
  2. Step 2: Convert to fraction form
    100,324.24/138,351.66 = 60,031.60/x
  3. Step 3: Cross multiply
    100,324.24x = 138,351.66 × 60,031.60
  4. Step 4: Simplify right side
    100,324.24x = 8,305,471,512.46
  5. Step 5: Solve for x
    x = 8,305,471,512.46/100,324.24
  6. Step 6: Final answer
    x = 82,786.29

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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.