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Finding the Fourth Proportional to 166.67, 230.06 and 101.18

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Solution

The fourth proportional to 166.67, 230.06 and 101.18 is: 139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.67 : 230.06 = 101.18 : x
  2. Step 2: Convert to fraction form
    166.67/230.06 = 101.18/x
  3. Step 3: Cross multiply
    166.67x = 230.06 × 101.18
  4. Step 4: Simplify right side
    166.67x = 23,275.81
  5. Step 5: Solve for x
    x = 23,275.81/166.67
  6. Step 6: Final answer
    x = 139.66

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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.