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Finding the Fourth Proportional to 140,978.81, 194,550.86 and 77,316.86

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Solution

The fourth proportional to 140,978.81, 194,550.86 and 77,316.86 is: 106,697.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,978.81 : 194,550.86 = 77,316.86 : x
  2. Step 2: Convert to fraction form
    140,978.81/194,550.86 = 77,316.86/x
  3. Step 3: Cross multiply
    140,978.81x = 194,550.86 × 77,316.86
  4. Step 4: Simplify right side
    140,978.81x = 15,042,062,285.17
  5. Step 5: Solve for x
    x = 15,042,062,285.17/140,978.81
  6. Step 6: Final answer
    x = 106,697.33

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