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Finding the Fourth Proportional to 161,959.43, 223,514.03 and 89,361.97

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Solution

The fourth proportional to 161,959.43, 223,514.03 and 89,361.97 is: 123,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,959.43 : 223,514.03 = 89,361.97 : x
  2. Step 2: Convert to fraction form
    161,959.43/223,514.03 = 89,361.97/x
  3. Step 3: Cross multiply
    161,959.43x = 223,514.03 × 89,361.97
  4. Step 4: Simplify right side
    161,959.43x = 19,973,654,043.44
  5. Step 5: Solve for x
    x = 19,973,654,043.44/161,959.43
  6. Step 6: Final answer
    x = 123,325.05

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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.