Home / 140,213.19-209,984.50-80,868.95

Finding the Fourth Proportional to 140,213.19, 209,984.50 and 80,868.95

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Solution

The fourth proportional to 140,213.19, 209,984.50 and 80,868.95 is: 121,110.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,213.19 : 209,984.50 = 80,868.95 : x
  2. Step 2: Convert to fraction form
    140,213.19/209,984.50 = 80,868.95/x
  3. Step 3: Cross multiply
    140,213.19x = 209,984.50 × 80,868.95
  4. Step 4: Simplify right side
    140,213.19x = 16,981,224,577.01
  5. Step 5: Solve for x
    x = 16,981,224,577.01/140,213.19
  6. Step 6: Final answer
    x = 121,110.04

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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.