Home / 199,758.81-275,662.62-109,115.18

Finding the Fourth Proportional to 199,758.81, 275,662.62 and 109,115.18

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Solution

The fourth proportional to 199,758.81, 275,662.62 and 109,115.18 is: 150,576.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,758.81 : 275,662.62 = 109,115.18 : x
  2. Step 2: Convert to fraction form
    199,758.81/275,662.62 = 109,115.18/x
  3. Step 3: Cross multiply
    199,758.81x = 275,662.62 × 109,115.18
  4. Step 4: Simplify right side
    199,758.81x = 30,078,976,400.57
  5. Step 5: Solve for x
    x = 30,078,976,400.57/199,758.81
  6. Step 6: Final answer
    x = 150,576.47

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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.