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Finding the Fourth Proportional to 105.04, 144.92 and 61.37

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Solution

The fourth proportional to 105.04, 144.92 and 61.37 is: 84.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.04 : 144.92 = 61.37 : x
  2. Step 2: Convert to fraction form
    105.04/144.92 = 61.37/x
  3. Step 3: Cross multiply
    105.04x = 144.92 × 61.37
  4. Step 4: Simplify right side
    105.04x = 8,893.74
  5. Step 5: Solve for x
    x = 8,893.74/105.04
  6. Step 6: Final answer
    x = 84.67

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