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Finding the Fourth Proportional to 168,745.28, 253,147.04 and 68,959.68

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Solution

The fourth proportional to 168,745.28, 253,147.04 and 68,959.68 is: 103,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,745.28 : 253,147.04 = 68,959.68 : x
  2. Step 2: Convert to fraction form
    168,745.28/253,147.04 = 68,959.68/x
  3. Step 3: Cross multiply
    168,745.28x = 253,147.04 × 68,959.68
  4. Step 4: Simplify right side
    168,745.28x = 17,456,938,871.35
  5. Step 5: Solve for x
    x = 17,456,938,871.35/168,745.28
  6. Step 6: Final answer
    x = 103,451.42

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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.