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Finding the Fourth Proportional to 159,760.44, 220,470.12 and 88,142.57

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Solution

The fourth proportional to 159,760.44, 220,470.12 and 88,142.57 is: 121,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,760.44 : 220,470.12 = 88,142.57 : x
  2. Step 2: Convert to fraction form
    159,760.44/220,470.12 = 88,142.57/x
  3. Step 3: Cross multiply
    159,760.44x = 220,470.12 × 88,142.57
  4. Step 4: Simplify right side
    159,760.44x = 19,432,802,985.01
  5. Step 5: Solve for x
    x = 19,432,802,985.01/159,760.44
  6. Step 6: Final answer
    x = 121,637.14

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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.