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Finding the Fourth Proportional to 208,761.96, 312,971.42 and 96,418.28

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Solution

The fourth proportional to 208,761.96, 312,971.42 and 96,418.28 is: 144,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,761.96 : 312,971.42 = 96,418.28 : x
  2. Step 2: Convert to fraction form
    208,761.96/312,971.42 = 96,418.28/x
  3. Step 3: Cross multiply
    208,761.96x = 312,971.42 × 96,418.28
  4. Step 4: Simplify right side
    208,761.96x = 30,176,166,005.56
  5. Step 5: Solve for x
    x = 30,176,166,005.56/208,761.96
  6. Step 6: Final answer
    x = 144,548.20

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