Home / 100,604.20-150,906.30-89,231.80

Finding the Fourth Proportional to 100,604.20, 150,906.30 and 89,231.80

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Solution

The fourth proportional to 100,604.20, 150,906.30 and 89,231.80 is: 133,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,604.20 : 150,906.30 = 89,231.80 : x
  2. Step 2: Convert to fraction form
    100,604.20/150,906.30 = 89,231.80/x
  3. Step 3: Cross multiply
    100,604.20x = 150,906.30 × 89,231.80
  4. Step 4: Simplify right side
    100,604.20x = 13,465,640,780.34
  5. Step 5: Solve for x
    x = 13,465,640,780.34/100,604.20
  6. Step 6: Final answer
    x = 133,847.70

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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.