Home / 161,020.72-222,209.42-100,626.48

Finding the Fourth Proportional to 161,020.72, 222,209.42 and 100,626.48

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Solution

The fourth proportional to 161,020.72, 222,209.42 and 100,626.48 is: 138,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,020.72 : 222,209.42 = 100,626.48 : x
  2. Step 2: Convert to fraction form
    161,020.72/222,209.42 = 100,626.48/x
  3. Step 3: Cross multiply
    161,020.72x = 222,209.42 × 100,626.48
  4. Step 4: Simplify right side
    161,020.72x = 22,360,151,757.44
  5. Step 5: Solve for x
    x = 22,360,151,757.44/161,020.72
  6. Step 6: Final answer
    x = 138,865.06

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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.