Home / 161,100.38-222,399.33-100,704.62

Finding the Fourth Proportional to 161,100.38, 222,399.33 and 100,704.62

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Solution

The fourth proportional to 161,100.38, 222,399.33 and 100,704.62 is: 139,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,100.38 : 222,399.33 = 100,704.62 : x
  2. Step 2: Convert to fraction form
    161,100.38/222,399.33 = 100,704.62/x
  3. Step 3: Cross multiply
    161,100.38x = 222,399.33 × 100,704.62
  4. Step 4: Simplify right side
    161,100.38x = 22,396,640,015.90
  5. Step 5: Solve for x
    x = 22,396,640,015.90/161,100.38
  6. Step 6: Final answer
    x = 139,022.89

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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.