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Finding the Fourth Proportional to 132.22, 182.62 and 104.68

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Solution

The fourth proportional to 132.22, 182.62 and 104.68 is: 144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.22 : 182.62 = 104.68 : x
  2. Step 2: Convert to fraction form
    132.22/182.62 = 104.68/x
  3. Step 3: Cross multiply
    132.22x = 182.62 × 104.68
  4. Step 4: Simplify right side
    132.22x = 19,116.66
  5. Step 5: Solve for x
    x = 19,116.66/132.22
  6. Step 6: Final answer
    x = 144.58

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Why These Related Problems?

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