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Finding the Fourth Proportional to 73.14, 108.99 and 69

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Solution

The fourth proportional to 73.14, 108.99 and 69 is: 102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.14 : 108.99 = 69 : x
  2. Step 2: Convert to fraction form
    73.14/108.99 = 69/x
  3. Step 3: Cross multiply
    73.14x = 108.99 × 69
  4. Step 4: Simplify right side
    73.14x = 7,520.31
  5. Step 5: Solve for x
    x = 7,520.31/73.14
  6. Step 6: Final answer
    x = 102.82

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.