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Finding the Fourth Proportional to 136.03, 203.67 and 108.48

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Solution

The fourth proportional to 136.03, 203.67 and 108.48 is: 162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.03 : 203.67 = 108.48 : x
  2. Step 2: Convert to fraction form
    136.03/203.67 = 108.48/x
  3. Step 3: Cross multiply
    136.03x = 203.67 × 108.48
  4. Step 4: Simplify right side
    136.03x = 22,093.36
  5. Step 5: Solve for x
    x = 22,093.36/136.03
  6. Step 6: Final answer
    x = 162.42

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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.