Home / 199,680.40-275,570.20-109,044.80

Finding the Fourth Proportional to 199,680.40, 275,570.20 and 109,044.80

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Solution

The fourth proportional to 199,680.40, 275,570.20 and 109,044.80 is: 150,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,680.40 : 275,570.20 = 109,044.80 : x
  2. Step 2: Convert to fraction form
    199,680.40/275,570.20 = 109,044.80/x
  3. Step 3: Cross multiply
    199,680.40x = 275,570.20 × 109,044.80
  4. Step 4: Simplify right side
    199,680.40x = 30,049,497,344.96
  5. Step 5: Solve for x
    x = 30,049,497,344.96/199,680.40
  6. Step 6: Final answer
    x = 150,487.97

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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.