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Finding the Fourth Proportional to 163.68, 226.08 and 125.28

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Solution

The fourth proportional to 163.68, 226.08 and 125.28 is: 173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.68 : 226.08 = 125.28 : x
  2. Step 2: Convert to fraction form
    163.68/226.08 = 125.28/x
  3. Step 3: Cross multiply
    163.68x = 226.08 × 125.28
  4. Step 4: Simplify right side
    163.68x = 28,323.30
  5. Step 5: Solve for x
    x = 28,323.30/163.68
  6. Step 6: Final answer
    x = 173.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.