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Finding the Fourth Proportional to 80,170.80, 120,163.26 and 30,218.92

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Solution

The fourth proportional to 80,170.80, 120,163.26 and 30,218.92 is: 45,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,170.80 : 120,163.26 = 30,218.92 : x
  2. Step 2: Convert to fraction form
    80,170.80/120,163.26 = 30,218.92/x
  3. Step 3: Cross multiply
    80,170.80x = 120,163.26 × 30,218.92
  4. Step 4: Simplify right side
    80,170.80x = 3,631,203,940.88
  5. Step 5: Solve for x
    x = 3,631,203,940.88/80,170.80
  6. Step 6: Final answer
    x = 45,293.35

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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.