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Finding the Fourth Proportional to 139,018.43, 191,840.27 and 75,354.86

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Solution

The fourth proportional to 139,018.43, 191,840.27 and 75,354.86 is: 103,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,018.43 : 191,840.27 = 75,354.86 : x
  2. Step 2: Convert to fraction form
    139,018.43/191,840.27 = 75,354.86/x
  3. Step 3: Cross multiply
    139,018.43x = 191,840.27 × 75,354.86
  4. Step 4: Simplify right side
    139,018.43x = 14,456,095,352.24
  5. Step 5: Solve for x
    x = 14,456,095,352.24/139,018.43
  6. Step 6: Final answer
    x = 103,986.90

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