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Finding the Fourth Proportional to 166.76, 250 and 70.64

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Solution

The fourth proportional to 166.76, 250 and 70.64 is: 105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.76 : 250 = 70.64 : x
  2. Step 2: Convert to fraction form
    166.76/250 = 70.64/x
  3. Step 3: Cross multiply
    166.76x = 250 × 70.64
  4. Step 4: Simplify right side
    166.76x = 17,660
  5. Step 5: Solve for x
    x = 17,660/166.76
  6. Step 6: Final answer
    x = 105.90

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