Home / 259,734.80-389,322.36-126,704.72

Finding the Fourth Proportional to 259,734.80, 389,322.36 and 126,704.72

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Solution

The fourth proportional to 259,734.80, 389,322.36 and 126,704.72 is: 189,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,734.80 : 389,322.36 = 126,704.72 : x
  2. Step 2: Convert to fraction form
    259,734.80/389,322.36 = 126,704.72/x
  3. Step 3: Cross multiply
    259,734.80x = 389,322.36 × 126,704.72
  4. Step 4: Simplify right side
    259,734.80x = 49,328,980,613.54
  5. Step 5: Solve for x
    x = 49,328,980,613.54/259,734.80
  6. Step 6: Final answer
    x = 189,920.57

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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.