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Finding the Fourth Proportional to 79.13, 119.16 and 69.10

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Solution

The fourth proportional to 79.13, 119.16 and 69.10 is: 104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.13 : 119.16 = 69.10 : x
  2. Step 2: Convert to fraction form
    79.13/119.16 = 69.10/x
  3. Step 3: Cross multiply
    79.13x = 119.16 × 69.10
  4. Step 4: Simplify right side
    79.13x = 8,233.96
  5. Step 5: Solve for x
    x = 8,233.96/79.13
  6. Step 6: Final answer
    x = 104.06

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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.