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Finding the Fourth Proportional to 80,016.80, 119,794.80 and 71,722.40

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Solution

The fourth proportional to 80,016.80, 119,794.80 and 71,722.40 is: 107,377.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,016.80 : 119,794.80 = 71,722.40 : x
  2. Step 2: Convert to fraction form
    80,016.80/119,794.80 = 71,722.40/x
  3. Step 3: Cross multiply
    80,016.80x = 119,794.80 × 71,722.40
  4. Step 4: Simplify right side
    80,016.80x = 8,591,970,563.52
  5. Step 5: Solve for x
    x = 8,591,970,563.52/80,016.80
  6. Step 6: Final answer
    x = 107,377.08

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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.