Home / 127,997.20-191,736.60-88,598.80

Finding the Fourth Proportional to 127,997.20, 191,736.60 and 88,598.80

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Solution

The fourth proportional to 127,997.20, 191,736.60 and 88,598.80 is: 132,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,997.20 : 191,736.60 = 88,598.80 : x
  2. Step 2: Convert to fraction form
    127,997.20/191,736.60 = 88,598.80/x
  3. Step 3: Cross multiply
    127,997.20x = 191,736.60 × 88,598.80
  4. Step 4: Simplify right side
    127,997.20x = 16,987,632,676.08
  5. Step 5: Solve for x
    x = 16,987,632,676.08/127,997.20
  6. Step 6: Final answer
    x = 132,718.78

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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.