Home / 161,382.12-222,704.13-89,760.60

Finding the Fourth Proportional to 161,382.12, 222,704.13 and 89,760.60

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Solution

The fourth proportional to 161,382.12, 222,704.13 and 89,760.60 is: 123,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,382.12 : 222,704.13 = 89,760.60 : x
  2. Step 2: Convert to fraction form
    161,382.12/222,704.13 = 89,760.60/x
  3. Step 3: Cross multiply
    161,382.12x = 222,704.13 × 89,760.60
  4. Step 4: Simplify right side
    161,382.12x = 19,990,056,331.28
  5. Step 5: Solve for x
    x = 19,990,056,331.28/161,382.12
  6. Step 6: Final answer
    x = 123,867.85

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1.5x scale

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.