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Finding the Fourth Proportional to 141.54, 212.04 and 110.94

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Solution

The fourth proportional to 141.54, 212.04 and 110.94 is: 166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.54 : 212.04 = 110.94 : x
  2. Step 2: Convert to fraction form
    141.54/212.04 = 110.94/x
  3. Step 3: Cross multiply
    141.54x = 212.04 × 110.94
  4. Step 4: Simplify right side
    141.54x = 23,523.72
  5. Step 5: Solve for x
    x = 23,523.72/141.54
  6. Step 6: Final answer
    x = 166.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.