Home / 259,747.20-389,620.80-110,095.65

Finding the Fourth Proportional to 259,747.20, 389,620.80 and 110,095.65

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Solution

The fourth proportional to 259,747.20, 389,620.80 and 110,095.65 is: 165,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.20 : 389,620.80 = 110,095.65 : x
  2. Step 2: Convert to fraction form
    259,747.20/389,620.80 = 110,095.65/x
  3. Step 3: Cross multiply
    259,747.20x = 389,620.80 × 110,095.65
  4. Step 4: Simplify right side
    259,747.20x = 42,895,555,229.52
  5. Step 5: Solve for x
    x = 42,895,555,229.52/259,747.20
  6. Step 6: Final answer
    x = 165,143.48

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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.