Home / 80,114.27-120,171.66-30,180.96

Finding the Fourth Proportional to 80,114.27, 120,171.66 and 30,180.96

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Solution

The fourth proportional to 80,114.27, 120,171.66 and 30,180.96 is: 45,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,114.27 : 120,171.66 = 30,180.96 : x
  2. Step 2: Convert to fraction form
    80,114.27/120,171.66 = 30,180.96/x
  3. Step 3: Cross multiply
    80,114.27x = 120,171.66 × 30,180.96
  4. Step 4: Simplify right side
    80,114.27x = 3,626,895,462.74
  5. Step 5: Solve for x
    x = 3,626,895,462.74/80,114.27
  6. Step 6: Final answer
    x = 45,271.53

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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.