Home / 192,422.80-288,634.20-126,067.60

Finding the Fourth Proportional to 192,422.80, 288,634.20 and 126,067.60

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Solution

The fourth proportional to 192,422.80, 288,634.20 and 126,067.60 is: 189,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,422.80 : 288,634.20 = 126,067.60 : x
  2. Step 2: Convert to fraction form
    192,422.80/288,634.20 = 126,067.60/x
  3. Step 3: Cross multiply
    192,422.80x = 288,634.20 × 126,067.60
  4. Step 4: Simplify right side
    192,422.80x = 36,387,420,871.92
  5. Step 5: Solve for x
    x = 36,387,420,871.92/192,422.80
  6. Step 6: Final answer
    x = 189,101.40

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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.