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Finding the Fourth Proportional to 79.16, 119.22 and 73.52

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Solution

The fourth proportional to 79.16, 119.22 and 73.52 is: 110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.16 : 119.22 = 73.52 : x
  2. Step 2: Convert to fraction form
    79.16/119.22 = 73.52/x
  3. Step 3: Cross multiply
    79.16x = 119.22 × 73.52
  4. Step 4: Simplify right side
    79.16x = 8,764.69
  5. Step 5: Solve for x
    x = 8,764.69/79.16
  6. Step 6: Final answer
    x = 110.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.