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Finding the Fourth Proportional to 186.22, 279.60 and 113.86

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Solution

The fourth proportional to 186.22, 279.60 and 113.86 is: 170.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.22 : 279.60 = 113.86 : x
  2. Step 2: Convert to fraction form
    186.22/279.60 = 113.86/x
  3. Step 3: Cross multiply
    186.22x = 279.60 × 113.86
  4. Step 4: Simplify right side
    186.22x = 31,835.26
  5. Step 5: Solve for x
    x = 31,835.26/186.22
  6. Step 6: Final answer
    x = 170.96

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