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Finding the Fourth Proportional to 168,760.72, 252,942.36 and 68,858.56

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Solution

The fourth proportional to 168,760.72, 252,942.36 and 68,858.56 is: 103,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,760.72 : 252,942.36 = 68,858.56 : x
  2. Step 2: Convert to fraction form
    168,760.72/252,942.36 = 68,858.56/x
  3. Step 3: Cross multiply
    168,760.72x = 252,942.36 × 68,858.56
  4. Step 4: Simplify right side
    168,760.72x = 17,417,246,672.60
  5. Step 5: Solve for x
    x = 17,417,246,672.60/168,760.72
  6. Step 6: Final answer
    x = 103,206.76

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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.