Home / 172,849.20-259,338.60-67,743.60

Finding the Fourth Proportional to 172,849.20, 259,338.60 and 67,743.60

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Solution

The fourth proportional to 172,849.20, 259,338.60 and 67,743.60 is: 101,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,849.20 : 259,338.60 = 67,743.60 : x
  2. Step 2: Convert to fraction form
    172,849.20/259,338.60 = 67,743.60/x
  3. Step 3: Cross multiply
    172,849.20x = 259,338.60 × 67,743.60
  4. Step 4: Simplify right side
    172,849.20x = 17,568,530,382.96
  5. Step 5: Solve for x
    x = 17,568,530,382.96/172,849.20
  6. Step 6: Final answer
    x = 101,640.80

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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.