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Finding the Fourth Proportional to 136.54, 187.03 and 135.17

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Solution

The fourth proportional to 136.54, 187.03 and 135.17 is: 185.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.54 : 187.03 = 135.17 : x
  2. Step 2: Convert to fraction form
    136.54/187.03 = 135.17/x
  3. Step 3: Cross multiply
    136.54x = 187.03 × 135.17
  4. Step 4: Simplify right side
    136.54x = 25,281.16
  5. Step 5: Solve for x
    x = 25,281.16/136.54
  6. Step 6: Final answer
    x = 185.16

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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.