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Finding the Fourth Proportional to 164.92, 227.62 and 106.72

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Solution

The fourth proportional to 164.92, 227.62 and 106.72 is: 147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.92 : 227.62 = 106.72 : x
  2. Step 2: Convert to fraction form
    164.92/227.62 = 106.72/x
  3. Step 3: Cross multiply
    164.92x = 227.62 × 106.72
  4. Step 4: Simplify right side
    164.92x = 24,291.61
  5. Step 5: Solve for x
    x = 24,291.61/164.92
  6. Step 6: Final answer
    x = 147.29

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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.