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Finding the Fourth Proportional to 141.03, 194.67 and 108.23

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Solution

The fourth proportional to 141.03, 194.67 and 108.23 is: 149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.03 : 194.67 = 108.23 : x
  2. Step 2: Convert to fraction form
    141.03/194.67 = 108.23/x
  3. Step 3: Cross multiply
    141.03x = 194.67 × 108.23
  4. Step 4: Simplify right side
    141.03x = 21,068.16
  5. Step 5: Solve for x
    x = 21,068.16/141.03
  6. Step 6: Final answer
    x = 149.39

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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.