Home / 100,512.20-150,549.60-61,000.40

Finding the Fourth Proportional to 100,512.20, 150,549.60 and 61,000.40

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Solution

The fourth proportional to 100,512.20, 150,549.60 and 61,000.40 is: 91,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,512.20 : 150,549.60 = 61,000.40 : x
  2. Step 2: Convert to fraction form
    100,512.20/150,549.60 = 61,000.40/x
  3. Step 3: Cross multiply
    100,512.20x = 150,549.60 × 61,000.40
  4. Step 4: Simplify right side
    100,512.20x = 9,183,585,819.84
  5. Step 5: Solve for x
    x = 9,183,585,819.84/100,512.20
  6. Step 6: Final answer
    x = 91,367.87

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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.