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Finding the Fourth Proportional to 88.25, 132.23 and 69.93

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Solution

The fourth proportional to 88.25, 132.23 and 69.93 is: 104.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.25 : 132.23 = 69.93 : x
  2. Step 2: Convert to fraction form
    88.25/132.23 = 69.93/x
  3. Step 3: Cross multiply
    88.25x = 132.23 × 69.93
  4. Step 4: Simplify right side
    88.25x = 9,247.02
  5. Step 5: Solve for x
    x = 9,247.02/88.25
  6. Step 6: Final answer
    x = 104.79

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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.