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Finding the Fourth Proportional to 99,946.32, 138,039.30 and 68,059.86

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Solution

The fourth proportional to 99,946.32, 138,039.30 and 68,059.86 is: 93,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,946.32 : 138,039.30 = 68,059.86 : x
  2. Step 2: Convert to fraction form
    99,946.32/138,039.30 = 68,059.86/x
  3. Step 3: Cross multiply
    99,946.32x = 138,039.30 × 68,059.86
  4. Step 4: Simplify right side
    99,946.32x = 9,394,935,432.50
  5. Step 5: Solve for x
    x = 9,394,935,432.50/99,946.32
  6. Step 6: Final answer
    x = 93,999.81

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