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Finding the Fourth Proportional to 141.85, 213.08 and 113.00

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Solution

The fourth proportional to 141.85, 213.08 and 113.00 is: 169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.85 : 213.08 = 113.00 : x
  2. Step 2: Convert to fraction form
    141.85/213.08 = 113.00/x
  3. Step 3: Cross multiply
    141.85x = 213.08 × 113.00
  4. Step 4: Simplify right side
    141.85x = 24,077.05
  5. Step 5: Solve for x
    x = 24,077.05/141.85
  6. Step 6: Final answer
    x = 169.73

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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.