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Finding the Fourth Proportional to 132.64, 182.84 and 88.90

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Solution

The fourth proportional to 132.64, 182.84 and 88.90 is: 122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.64 : 182.84 = 88.90 : x
  2. Step 2: Convert to fraction form
    132.64/182.84 = 88.90/x
  3. Step 3: Cross multiply
    132.64x = 182.84 × 88.90
  4. Step 4: Simplify right side
    132.64x = 16,253.57
  5. Step 5: Solve for x
    x = 16,253.57/132.64
  6. Step 6: Final answer
    x = 122.54

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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.