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Finding the Fourth Proportional to 136.06, 187.62 and 101.11

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Solution

The fourth proportional to 136.06, 187.62 and 101.11 is: 139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.06 : 187.62 = 101.11 : x
  2. Step 2: Convert to fraction form
    136.06/187.62 = 101.11/x
  3. Step 3: Cross multiply
    136.06x = 187.62 × 101.11
  4. Step 4: Simplify right side
    136.06x = 18,969.75
  5. Step 5: Solve for x
    x = 18,969.75/136.06
  6. Step 6: Final answer
    x = 139.42

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Why These Related Problems?

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