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Finding the Fourth Proportional to 164.56, 227.06 and 93.65

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Solution

The fourth proportional to 164.56, 227.06 and 93.65 is: 129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.56 : 227.06 = 93.65 : x
  2. Step 2: Convert to fraction form
    164.56/227.06 = 93.65/x
  3. Step 3: Cross multiply
    164.56x = 227.06 × 93.65
  4. Step 4: Simplify right side
    164.56x = 21,263.70
  5. Step 5: Solve for x
    x = 21,263.70/164.56
  6. Step 6: Final answer
    x = 129.22

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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.