Home / 100,532.24-138,734.13-55,213.16

Finding the Fourth Proportional to 100,532.24, 138,734.13 and 55,213.16

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Solution

The fourth proportional to 100,532.24, 138,734.13 and 55,213.16 is: 76,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,532.24 : 138,734.13 = 55,213.16 : x
  2. Step 2: Convert to fraction form
    100,532.24/138,734.13 = 55,213.16/x
  3. Step 3: Cross multiply
    100,532.24x = 138,734.13 × 55,213.16
  4. Step 4: Simplify right side
    100,532.24x = 7,659,948,747.41
  5. Step 5: Solve for x
    x = 7,659,948,747.41/100,532.24
  6. Step 6: Final answer
    x = 76,193.95

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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.