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Finding the Fourth Proportional to 110.84, 167.13 and 109.62

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Solution

The fourth proportional to 110.84, 167.13 and 109.62 is: 165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.84 : 167.13 = 109.62 : x
  2. Step 2: Convert to fraction form
    110.84/167.13 = 109.62/x
  3. Step 3: Cross multiply
    110.84x = 167.13 × 109.62
  4. Step 4: Simplify right side
    110.84x = 18,320.79
  5. Step 5: Solve for x
    x = 18,320.79/110.84
  6. Step 6: Final answer
    x = 165.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.