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Finding the Fourth Proportional to 161,370.96, 222,691.32 and 89,754

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Solution

The fourth proportional to 161,370.96, 222,691.32 and 89,754 is: 123,860.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,370.96 : 222,691.32 = 89,754 : x
  2. Step 2: Convert to fraction form
    161,370.96/222,691.32 = 89,754/x
  3. Step 3: Cross multiply
    161,370.96x = 222,691.32 × 89,754
  4. Step 4: Simplify right side
    161,370.96x = 19,987,436,735.28
  5. Step 5: Solve for x
    x = 19,987,436,735.28/161,370.96
  6. Step 6: Final answer
    x = 123,860.18

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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.