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Finding the Fourth Proportional to 92,141.75, 138,485.30 and 76,448.61

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Solution

The fourth proportional to 92,141.75, 138,485.30 and 76,448.61 is: 114,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,141.75 : 138,485.30 = 76,448.61 : x
  2. Step 2: Convert to fraction form
    92,141.75/138,485.30 = 76,448.61/x
  3. Step 3: Cross multiply
    92,141.75x = 138,485.30 × 76,448.61
  4. Step 4: Simplify right side
    92,141.75x = 10,587,008,308.19
  5. Step 5: Solve for x
    x = 10,587,008,308.19/92,141.75
  6. Step 6: Final answer
    x = 114,899.14

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