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Finding the Fourth Proportional to 100,443.46, 150,524.34 and 72,230.76

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Solution

The fourth proportional to 100,443.46, 150,524.34 and 72,230.76 is: 108,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,443.46 : 150,524.34 = 72,230.76 : x
  2. Step 2: Convert to fraction form
    100,443.46/150,524.34 = 72,230.76/x
  3. Step 3: Cross multiply
    100,443.46x = 150,524.34 × 72,230.76
  4. Step 4: Simplify right side
    100,443.46x = 10,872,487,476.70
  5. Step 5: Solve for x
    x = 10,872,487,476.70/100,443.46
  6. Step 6: Final answer
    x = 108,244.85

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1.5x scale

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.