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Finding the Fourth Proportional to 161,958.43, 223,512.65 and 89,360.97

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Solution

The fourth proportional to 161,958.43, 223,512.65 and 89,360.97 is: 123,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,958.43 : 223,512.65 = 89,360.97 : x
  2. Step 2: Convert to fraction form
    161,958.43/223,512.65 = 89,360.97/x
  3. Step 3: Cross multiply
    161,958.43x = 223,512.65 × 89,360.97
  4. Step 4: Simplify right side
    161,958.43x = 19,973,305,646.90
  5. Step 5: Solve for x
    x = 19,973,305,646.90/161,958.43
  6. Step 6: Final answer
    x = 123,323.66

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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.