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Finding the Fourth Proportional to 101.26, 151.87 and 84.25

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Solution

The fourth proportional to 101.26, 151.87 and 84.25 is: 126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.26 : 151.87 = 84.25 : x
  2. Step 2: Convert to fraction form
    101.26/151.87 = 84.25/x
  3. Step 3: Cross multiply
    101.26x = 151.87 × 84.25
  4. Step 4: Simplify right side
    101.26x = 12,794.46
  5. Step 5: Solve for x
    x = 12,794.46/101.26
  6. Step 6: Final answer
    x = 126.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.