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Finding the Fourth Proportional to 116.26, 173.14 and 111.65

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Solution

The fourth proportional to 116.26, 173.14 and 111.65 is: 166.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.26 : 173.14 = 111.65 : x
  2. Step 2: Convert to fraction form
    116.26/173.14 = 111.65/x
  3. Step 3: Cross multiply
    116.26x = 173.14 × 111.65
  4. Step 4: Simplify right side
    116.26x = 19,329.94
  5. Step 5: Solve for x
    x = 19,329.94/116.26
  6. Step 6: Final answer
    x = 166.27

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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.