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Finding the Fourth Proportional to 89.06, 134.03 and 79.13

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Solution

The fourth proportional to 89.06, 134.03 and 79.13 is: 119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.06 : 134.03 = 79.13 : x
  2. Step 2: Convert to fraction form
    89.06/134.03 = 79.13/x
  3. Step 3: Cross multiply
    89.06x = 134.03 × 79.13
  4. Step 4: Simplify right side
    89.06x = 10,604.73
  5. Step 5: Solve for x
    x = 10,604.73/89.06
  6. Step 6: Final answer
    x = 119.08

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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.