Home / 185,961.76-278,785.44-80,701.60

Finding the Fourth Proportional to 185,961.76, 278,785.44 and 80,701.60

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Solution

The fourth proportional to 185,961.76, 278,785.44 and 80,701.60 is: 120,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,961.76 : 278,785.44 = 80,701.60 : x
  2. Step 2: Convert to fraction form
    185,961.76/278,785.44 = 80,701.60/x
  3. Step 3: Cross multiply
    185,961.76x = 278,785.44 × 80,701.60
  4. Step 4: Simplify right side
    185,961.76x = 22,498,431,064.70
  5. Step 5: Solve for x
    x = 22,498,431,064.70/185,961.76
  6. Step 6: Final answer
    x = 120,984.18

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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.