Home / 199,895.65-275,856-109,251.61

Finding the Fourth Proportional to 199,895.65, 275,856 and 109,251.61

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Solution

The fourth proportional to 199,895.65, 275,856 and 109,251.61 is: 150,767.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,895.65 : 275,856 = 109,251.61 : x
  2. Step 2: Convert to fraction form
    199,895.65/275,856 = 109,251.61/x
  3. Step 3: Cross multiply
    199,895.65x = 275,856 × 109,251.61
  4. Step 4: Simplify right side
    199,895.65x = 30,137,711,438.52
  5. Step 5: Solve for x
    x = 30,137,711,438.52/199,895.65
  6. Step 6: Final answer
    x = 150,767.22

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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.