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Finding the Fourth Proportional to 149.86, 224.76 and 68.69

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Solution

The fourth proportional to 149.86, 224.76 and 68.69 is: 103.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.86 : 224.76 = 68.69 : x
  2. Step 2: Convert to fraction form
    149.86/224.76 = 68.69/x
  3. Step 3: Cross multiply
    149.86x = 224.76 × 68.69
  4. Step 4: Simplify right side
    149.86x = 15,438.76
  5. Step 5: Solve for x
    x = 15,438.76/149.86
  6. Step 6: Final answer
    x = 103.02

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