Home / 80,101.88-120,161.04-30,223.95

Finding the Fourth Proportional to 80,101.88, 120,161.04 and 30,223.95

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Solution

The fourth proportional to 80,101.88, 120,161.04 and 30,223.95 is: 45,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,101.88 : 120,161.04 = 30,223.95 : x
  2. Step 2: Convert to fraction form
    80,101.88/120,161.04 = 30,223.95/x
  3. Step 3: Cross multiply
    80,101.88x = 120,161.04 × 30,223.95
  4. Step 4: Simplify right side
    80,101.88x = 3,631,740,700.96
  5. Step 5: Solve for x
    x = 3,631,740,700.96/80,101.88
  6. Step 6: Final answer
    x = 45,339.02

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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.