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Finding the Fourth Proportional to 110.43, 164.61 and 109.44

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Solution

The fourth proportional to 110.43, 164.61 and 109.44 is: 163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.43 : 164.61 = 109.44 : x
  2. Step 2: Convert to fraction form
    110.43/164.61 = 109.44/x
  3. Step 3: Cross multiply
    110.43x = 164.61 × 109.44
  4. Step 4: Simplify right side
    110.43x = 18,014.92
  5. Step 5: Solve for x
    x = 18,014.92/110.43
  6. Step 6: Final answer
    x = 163.13

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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.