Home / 100,292.16-150,439.20-47,706.88

Finding the Fourth Proportional to 100,292.16, 150,439.20 and 47,706.88

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Solution

The fourth proportional to 100,292.16, 150,439.20 and 47,706.88 is: 71,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292.16 : 150,439.20 = 47,706.88 : x
  2. Step 2: Convert to fraction form
    100,292.16/150,439.20 = 47,706.88/x
  3. Step 3: Cross multiply
    100,292.16x = 150,439.20 × 47,706.88
  4. Step 4: Simplify right side
    100,292.16x = 7,176,984,861.70
  5. Step 5: Solve for x
    x = 7,176,984,861.70/100,292.16
  6. Step 6: Final answer
    x = 71,560.78

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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.