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Finding the Fourth Proportional to 116.06, 173.75 and 103.91

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Solution

The fourth proportional to 116.06, 173.75 and 103.91 is: 155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.06 : 173.75 = 103.91 : x
  2. Step 2: Convert to fraction form
    116.06/173.75 = 103.91/x
  3. Step 3: Cross multiply
    116.06x = 173.75 × 103.91
  4. Step 4: Simplify right side
    116.06x = 18,052.97
  5. Step 5: Solve for x
    x = 18,052.97/116.06
  6. Step 6: Final answer
    x = 155.56

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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.