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Finding the Fourth Proportional to 169,761.96, 254,255.40 and 81,077.94

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Solution

The fourth proportional to 169,761.96, 254,255.40 and 81,077.94 is: 121,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,761.96 : 254,255.40 = 81,077.94 : x
  2. Step 2: Convert to fraction form
    169,761.96/254,255.40 = 81,077.94/x
  3. Step 3: Cross multiply
    169,761.96x = 254,255.40 × 81,077.94
  4. Step 4: Simplify right side
    169,761.96x = 20,614,504,065.88
  5. Step 5: Solve for x
    x = 20,614,504,065.88/169,761.96
  6. Step 6: Final answer
    x = 121,431.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.