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Finding the Fourth Proportional to 104.55, 144.04 and 95.23

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Solution

The fourth proportional to 104.55, 144.04 and 95.23 is: 131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.55 : 144.04 = 95.23 : x
  2. Step 2: Convert to fraction form
    104.55/144.04 = 95.23/x
  3. Step 3: Cross multiply
    104.55x = 144.04 × 95.23
  4. Step 4: Simplify right side
    104.55x = 13,716.93
  5. Step 5: Solve for x
    x = 13,716.93/104.55
  6. Step 6: Final answer
    x = 131.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.