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Finding the Fourth Proportional to 159,757.65, 220,467.42 and 88,140.29

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Solution

The fourth proportional to 159,757.65, 220,467.42 and 88,140.29 is: 121,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,757.65 : 220,467.42 = 88,140.29 : x
  2. Step 2: Convert to fraction form
    159,757.65/220,467.42 = 88,140.29/x
  3. Step 3: Cross multiply
    159,757.65x = 220,467.42 × 88,140.29
  4. Step 4: Simplify right side
    159,757.65x = 19,432,061,232.01
  5. Step 5: Solve for x
    x = 19,432,061,232.01/159,757.65
  6. Step 6: Final answer
    x = 121,634.62

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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.