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Finding the Fourth Proportional to 131.33, 195.68 and 116.96

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Solution

The fourth proportional to 131.33, 195.68 and 116.96 is: 174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.33 : 195.68 = 116.96 : x
  2. Step 2: Convert to fraction form
    131.33/195.68 = 116.96/x
  3. Step 3: Cross multiply
    131.33x = 195.68 × 116.96
  4. Step 4: Simplify right side
    131.33x = 22,885.17
  5. Step 5: Solve for x
    x = 22,885.17/131.33
  6. Step 6: Final answer
    x = 174.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.