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Finding the Fourth Proportional to 88,833.80, 133,056.30 and 77,169.80

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Solution

The fourth proportional to 88,833.80, 133,056.30 and 77,169.80 is: 115,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,833.80 : 133,056.30 = 77,169.80 : x
  2. Step 2: Convert to fraction form
    88,833.80/133,056.30 = 77,169.80/x
  3. Step 3: Cross multiply
    88,833.80x = 133,056.30 × 77,169.80
  4. Step 4: Simplify right side
    88,833.80x = 10,267,928,059.74
  5. Step 5: Solve for x
    x = 10,267,928,059.74/88,833.80
  6. Step 6: Final answer
    x = 115,585.82

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