Home / 199,917.38-275,878.10-109,276.56

Finding the Fourth Proportional to 199,917.38, 275,878.10 and 109,276.56

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Solution

The fourth proportional to 199,917.38, 275,878.10 and 109,276.56 is: 150,797.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,917.38 : 275,878.10 = 109,276.56 : x
  2. Step 2: Convert to fraction form
    199,917.38/275,878.10 = 109,276.56/x
  3. Step 3: Cross multiply
    199,917.38x = 275,878.10 × 109,276.56
  4. Step 4: Simplify right side
    199,917.38x = 30,147,010,020.53
  5. Step 5: Solve for x
    x = 30,147,010,020.53/199,917.38
  6. Step 6: Final answer
    x = 150,797.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.