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Finding the Fourth Proportional to 139,783.06, 192,903.70 and 76,120.86

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Solution

The fourth proportional to 139,783.06, 192,903.70 and 76,120.86 is: 105,048.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,783.06 : 192,903.70 = 76,120.86 : x
  2. Step 2: Convert to fraction form
    139,783.06/192,903.70 = 76,120.86/x
  3. Step 3: Cross multiply
    139,783.06x = 192,903.70 × 76,120.86
  4. Step 4: Simplify right side
    139,783.06x = 14,683,995,541.18
  5. Step 5: Solve for x
    x = 14,683,995,541.18/139,783.06
  6. Step 6: Final answer
    x = 105,048.46

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