Home / 161,382.62-222,704.82-89,761.10

Finding the Fourth Proportional to 161,382.62, 222,704.82 and 89,761.10

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Solution

The fourth proportional to 161,382.62, 222,704.82 and 89,761.10 is: 123,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,382.62 : 222,704.82 = 89,761.10 : x
  2. Step 2: Convert to fraction form
    161,382.62/222,704.82 = 89,761.10/x
  3. Step 3: Cross multiply
    161,382.62x = 222,704.82 × 89,761.10
  4. Step 4: Simplify right side
    161,382.62x = 19,990,229,618.50
  5. Step 5: Solve for x
    x = 19,990,229,618.50/161,382.62
  6. Step 6: Final answer
    x = 123,868.54

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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.