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Finding the Fourth Proportional to 134.56, 186.05 and 108.59

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Solution

The fourth proportional to 134.56, 186.05 and 108.59 is: 150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.56 : 186.05 = 108.59 : x
  2. Step 2: Convert to fraction form
    134.56/186.05 = 108.59/x
  3. Step 3: Cross multiply
    134.56x = 186.05 × 108.59
  4. Step 4: Simplify right side
    134.56x = 20,202.95
  5. Step 5: Solve for x
    x = 20,202.95/134.56
  6. Step 6: Final answer
    x = 150.14

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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.