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Finding the Fourth Proportional to 119.39, 163.25 and 119.39

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Solution

The fourth proportional to 119.39, 163.25 and 119.39 is: 163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.39 : 163.25 = 119.39 : x
  2. Step 2: Convert to fraction form
    119.39/163.25 = 119.39/x
  3. Step 3: Cross multiply
    119.39x = 163.25 × 119.39
  4. Step 4: Simplify right side
    119.39x = 19,489.93
  5. Step 5: Solve for x
    x = 19,489.93/119.39
  6. Step 6: Final answer
    x = 163.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.