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Finding the Fourth Proportional to 110.18, 151.89 and 77.33

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Solution

The fourth proportional to 110.18, 151.89 and 77.33 is: 106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.18 : 151.89 = 77.33 : x
  2. Step 2: Convert to fraction form
    110.18/151.89 = 77.33/x
  3. Step 3: Cross multiply
    110.18x = 151.89 × 77.33
  4. Step 4: Simplify right side
    110.18x = 11,745.65
  5. Step 5: Solve for x
    x = 11,745.65/110.18
  6. Step 6: Final answer
    x = 106.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.