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Finding the Fourth Proportional to 92,081.80, 137,928.30 and 76,529.80

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Solution

The fourth proportional to 92,081.80, 137,928.30 and 76,529.80 is: 114,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,081.80 : 137,928.30 = 76,529.80 : x
  2. Step 2: Convert to fraction form
    92,081.80/137,928.30 = 76,529.80/x
  3. Step 3: Cross multiply
    92,081.80x = 137,928.30 × 76,529.80
  4. Step 4: Simplify right side
    92,081.80x = 10,555,625,213.34
  5. Step 5: Solve for x
    x = 10,555,625,213.34/92,081.80
  6. Step 6: Final answer
    x = 114,633.13

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