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Finding the Fourth Proportional to 134.46, 185.68 and 116.89

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Solution

The fourth proportional to 134.46, 185.68 and 116.89 is: 161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.46 : 185.68 = 116.89 : x
  2. Step 2: Convert to fraction form
    134.46/185.68 = 116.89/x
  3. Step 3: Cross multiply
    134.46x = 185.68 × 116.89
  4. Step 4: Simplify right side
    134.46x = 21,704.14
  5. Step 5: Solve for x
    x = 21,704.14/134.46
  6. Step 6: Final answer
    x = 161.42

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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.