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Finding the Fourth Proportional to 116.19, 159.84 and 97.65

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Solution

The fourth proportional to 116.19, 159.84 and 97.65 is: 134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.19 : 159.84 = 97.65 : x
  2. Step 2: Convert to fraction form
    116.19/159.84 = 97.65/x
  3. Step 3: Cross multiply
    116.19x = 159.84 × 97.65
  4. Step 4: Simplify right side
    116.19x = 15,608.38
  5. Step 5: Solve for x
    x = 15,608.38/116.19
  6. Step 6: Final answer
    x = 134.33

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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.