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Finding the Fourth Proportional to 110.50, 153.23 and 104.29

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Solution

The fourth proportional to 110.50, 153.23 and 104.29 is: 144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.50 : 153.23 = 104.29 : x
  2. Step 2: Convert to fraction form
    110.50/153.23 = 104.29/x
  3. Step 3: Cross multiply
    110.50x = 153.23 × 104.29
  4. Step 4: Simplify right side
    110.50x = 15,979.45
  5. Step 5: Solve for x
    x = 15,979.45/110.50
  6. Step 6: Final answer
    x = 144.61

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.