Home / 100,276.20-150,414.30-87,445.80

Finding the Fourth Proportional to 100,276.20, 150,414.30 and 87,445.80

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Solution

The fourth proportional to 100,276.20, 150,414.30 and 87,445.80 is: 131,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,276.20 : 150,414.30 = 87,445.80 : x
  2. Step 2: Convert to fraction form
    100,276.20/150,414.30 = 87,445.80/x
  3. Step 3: Cross multiply
    100,276.20x = 150,414.30 × 87,445.80
  4. Step 4: Simplify right side
    100,276.20x = 13,153,098,794.94
  5. Step 5: Solve for x
    x = 13,153,098,794.94/100,276.20
  6. Step 6: Final answer
    x = 131,168.70

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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.