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Finding the Fourth Proportional to 141.46, 195 and 104.59

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Solution

The fourth proportional to 141.46, 195 and 104.59 is: 144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.46 : 195 = 104.59 : x
  2. Step 2: Convert to fraction form
    141.46/195 = 104.59/x
  3. Step 3: Cross multiply
    141.46x = 195 × 104.59
  4. Step 4: Simplify right side
    141.46x = 20,395.05
  5. Step 5: Solve for x
    x = 20,395.05/141.46
  6. Step 6: Final answer
    x = 144.18

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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.