Home / 127,546.28-191,224.20-87,990.56

Finding the Fourth Proportional to 127,546.28, 191,224.20 and 87,990.56

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Solution

The fourth proportional to 127,546.28, 191,224.20 and 87,990.56 is: 131,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,546.28 : 191,224.20 = 87,990.56 : x
  2. Step 2: Convert to fraction form
    127,546.28/191,224.20 = 87,990.56/x
  3. Step 3: Cross multiply
    127,546.28x = 191,224.20 × 87,990.56
  4. Step 4: Simplify right side
    127,546.28x = 16,825,924,443.55
  5. Step 5: Solve for x
    x = 16,825,924,443.55/127,546.28
  6. Step 6: Final answer
    x = 131,920.15

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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.