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Finding the Fourth Proportional to 88.33, 132.36 and 76.18

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Solution

The fourth proportional to 88.33, 132.36 and 76.18 is: 114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.33 : 132.36 = 76.18 : x
  2. Step 2: Convert to fraction form
    88.33/132.36 = 76.18/x
  3. Step 3: Cross multiply
    88.33x = 132.36 × 76.18
  4. Step 4: Simplify right side
    88.33x = 10,083.18
  5. Step 5: Solve for x
    x = 10,083.18/88.33
  6. Step 6: Final answer
    x = 114.15

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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.