Home / 141,441.57-195,133.68-80,979.66

Finding the Fourth Proportional to 141,441.57, 195,133.68 and 80,979.66

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Solution

The fourth proportional to 141,441.57, 195,133.68 and 80,979.66 is: 111,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,441.57 : 195,133.68 = 80,979.66 : x
  2. Step 2: Convert to fraction form
    141,441.57/195,133.68 = 80,979.66/x
  3. Step 3: Cross multiply
    141,441.57x = 195,133.68 × 80,979.66
  4. Step 4: Simplify right side
    141,441.57x = 15,801,859,060.95
  5. Step 5: Solve for x
    x = 15,801,859,060.95/141,441.57
  6. Step 6: Final answer
    x = 111,720.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.