Home / 159,757.57-220,463.94-88,138.18

Finding the Fourth Proportional to 159,757.57, 220,463.94 and 88,138.18

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Solution

The fourth proportional to 159,757.57, 220,463.94 and 88,138.18 is: 121,629.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,757.57 : 220,463.94 = 88,138.18 : x
  2. Step 2: Convert to fraction form
    159,757.57/220,463.94 = 88,138.18/x
  3. Step 3: Cross multiply
    159,757.57x = 220,463.94 × 88,138.18
  4. Step 4: Simplify right side
    159,757.57x = 19,431,290,427.23
  5. Step 5: Solve for x
    x = 19,431,290,427.23/159,757.57
  6. Step 6: Final answer
    x = 121,629.86

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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.