Home / 199,686.42-275,565.11-109,042.11

Finding the Fourth Proportional to 199,686.42, 275,565.11 and 109,042.11

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Solution

The fourth proportional to 199,686.42, 275,565.11 and 109,042.11 is: 150,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,686.42 : 275,565.11 = 109,042.11 : x
  2. Step 2: Convert to fraction form
    199,686.42/275,565.11 = 109,042.11/x
  3. Step 3: Cross multiply
    199,686.42x = 275,565.11 × 109,042.11
  4. Step 4: Simplify right side
    199,686.42x = 30,048,200,491.57
  5. Step 5: Solve for x
    x = 30,048,200,491.57/199,686.42
  6. Step 6: Final answer
    x = 150,476.94

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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.