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Finding the Fourth Proportional to 136,395.96, 188,226.48 and 75,978.19

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Solution

The fourth proportional to 136,395.96, 188,226.48 and 75,978.19 is: 104,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,395.96 : 188,226.48 = 75,978.19 : x
  2. Step 2: Convert to fraction form
    136,395.96/188,226.48 = 75,978.19/x
  3. Step 3: Cross multiply
    136,395.96x = 188,226.48 × 75,978.19
  4. Step 4: Simplify right side
    136,395.96x = 14,301,107,260.47
  5. Step 5: Solve for x
    x = 14,301,107,260.47/136,395.96
  6. Step 6: Final answer
    x = 104,849.93

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