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Finding the Fourth Proportional to 169,190.28, 253,771.02 and 69,321.96

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Solution

The fourth proportional to 169,190.28, 253,771.02 and 69,321.96 is: 103,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,190.28 : 253,771.02 = 69,321.96 : x
  2. Step 2: Convert to fraction form
    169,190.28/253,771.02 = 69,321.96/x
  3. Step 3: Cross multiply
    169,190.28x = 253,771.02 × 69,321.96
  4. Step 4: Simplify right side
    169,190.28x = 17,591,904,497.60
  5. Step 5: Solve for x
    x = 17,591,904,497.60/169,190.28
  6. Step 6: Final answer
    x = 103,977.04

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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.