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Finding the Fourth Proportional to 131.39, 195.98 and 110.96

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Solution

The fourth proportional to 131.39, 195.98 and 110.96 is: 165.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.39 : 195.98 = 110.96 : x
  2. Step 2: Convert to fraction form
    131.39/195.98 = 110.96/x
  3. Step 3: Cross multiply
    131.39x = 195.98 × 110.96
  4. Step 4: Simplify right side
    131.39x = 21,745.39
  5. Step 5: Solve for x
    x = 21,745.39/131.39
  6. Step 6: Final answer
    x = 165.50

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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.