Home / 80,846.20-121,269.30-73,847.80

Finding the Fourth Proportional to 80,846.20, 121,269.30 and 73,847.80

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Solution

The fourth proportional to 80,846.20, 121,269.30 and 73,847.80 is: 110,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.20 : 121,269.30 = 73,847.80 : x
  2. Step 2: Convert to fraction form
    80,846.20/121,269.30 = 73,847.80/x
  3. Step 3: Cross multiply
    80,846.20x = 121,269.30 × 73,847.80
  4. Step 4: Simplify right side
    80,846.20x = 8,955,471,012.54
  5. Step 5: Solve for x
    x = 8,955,471,012.54/80,846.20
  6. Step 6: Final answer
    x = 110,771.70

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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.