Home / 168,067.11-252,119.13-68,212.80

Finding the Fourth Proportional to 168,067.11, 252,119.13 and 68,212.80

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Solution

The fourth proportional to 168,067.11, 252,119.13 and 68,212.80 is: 102,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,067.11 : 252,119.13 = 68,212.80 : x
  2. Step 2: Convert to fraction form
    168,067.11/252,119.13 = 68,212.80/x
  3. Step 3: Cross multiply
    168,067.11x = 252,119.13 × 68,212.80
  4. Step 4: Simplify right side
    168,067.11x = 17,197,751,790.86
  5. Step 5: Solve for x
    x = 17,197,751,790.86/168,067.11
  6. Step 6: Final answer
    x = 102,326.69

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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.