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Finding the Fourth Proportional to 159,759.29, 220,464.13 and 88,139.29

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Solution

The fourth proportional to 159,759.29, 220,464.13 and 88,139.29 is: 121,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,759.29 : 220,464.13 = 88,139.29 : x
  2. Step 2: Convert to fraction form
    159,759.29/220,464.13 = 88,139.29/x
  3. Step 3: Cross multiply
    159,759.29x = 220,464.13 × 88,139.29
  4. Step 4: Simplify right side
    159,759.29x = 19,431,551,888.67
  5. Step 5: Solve for x
    x = 19,431,551,888.67/159,759.29
  6. Step 6: Final answer
    x = 121,630.18

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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.