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Finding the Fourth Proportional to 116,139.20, 174,208.80 and 92,811.20

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Solution

The fourth proportional to 116,139.20, 174,208.80 and 92,811.20 is: 139,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,139.20 : 174,208.80 = 92,811.20 : x
  2. Step 2: Convert to fraction form
    116,139.20/174,208.80 = 92,811.20/x
  3. Step 3: Cross multiply
    116,139.20x = 174,208.80 × 92,811.20
  4. Step 4: Simplify right side
    116,139.20x = 16,168,527,778.56
  5. Step 5: Solve for x
    x = 16,168,527,778.56/116,139.20
  6. Step 6: Final answer
    x = 139,216.80

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