Home / 141,230.80-211,738.20-71,160.40

Finding the Fourth Proportional to 141,230.80, 211,738.20 and 71,160.40

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Solution

The fourth proportional to 141,230.80, 211,738.20 and 71,160.40 is: 106,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,230.80 : 211,738.20 = 71,160.40 : x
  2. Step 2: Convert to fraction form
    141,230.80/211,738.20 = 71,160.40/x
  3. Step 3: Cross multiply
    141,230.80x = 211,738.20 × 71,160.40
  4. Step 4: Simplify right side
    141,230.80x = 15,067,375,007.28
  5. Step 5: Solve for x
    x = 15,067,375,007.28/141,230.80
  6. Step 6: Final answer
    x = 106,686.18

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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.