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Finding the Fourth Proportional to 116.94, 174.44 and 104.79

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Solution

The fourth proportional to 116.94, 174.44 and 104.79 is: 156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.94 : 174.44 = 104.79 : x
  2. Step 2: Convert to fraction form
    116.94/174.44 = 104.79/x
  3. Step 3: Cross multiply
    116.94x = 174.44 × 104.79
  4. Step 4: Simplify right side
    116.94x = 18,279.57
  5. Step 5: Solve for x
    x = 18,279.57/116.94
  6. Step 6: Final answer
    x = 156.32

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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.