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Finding the Fourth Proportional to 118.06, 176.23 and 112.12

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Solution

The fourth proportional to 118.06, 176.23 and 112.12 is: 167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.06 : 176.23 = 112.12 : x
  2. Step 2: Convert to fraction form
    118.06/176.23 = 112.12/x
  3. Step 3: Cross multiply
    118.06x = 176.23 × 112.12
  4. Step 4: Simplify right side
    118.06x = 19,757.98
  5. Step 5: Solve for x
    x = 19,757.98/118.06
  6. Step 6: Final answer
    x = 167.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.