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Finding the Fourth Proportional to 161,355.60, 222,676.11 and 88,761.51

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Solution

The fourth proportional to 161,355.60, 222,676.11 and 88,761.51 is: 122,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,355.60 : 222,676.11 = 88,761.51 : x
  2. Step 2: Convert to fraction form
    161,355.60/222,676.11 = 88,761.51/x
  3. Step 3: Cross multiply
    161,355.60x = 222,676.11 × 88,761.51
  4. Step 4: Simplify right side
    161,355.60x = 19,765,067,764.53
  5. Step 5: Solve for x
    x = 19,765,067,764.53/161,355.60
  6. Step 6: Final answer
    x = 122,493.84

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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.