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Finding the Fourth Proportional to 116,765.48, 174,968.94 and 78,672.80

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Solution

The fourth proportional to 116,765.48, 174,968.94 and 78,672.80 is: 117,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,765.48 : 174,968.94 = 78,672.80 : x
  2. Step 2: Convert to fraction form
    116,765.48/174,968.94 = 78,672.80/x
  3. Step 3: Cross multiply
    116,765.48x = 174,968.94 × 78,672.80
  4. Step 4: Simplify right side
    116,765.48x = 13,765,296,422.83
  5. Step 5: Solve for x
    x = 13,765,296,422.83/116,765.48
  6. Step 6: Final answer
    x = 117,888.41

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