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Finding the Fourth Proportional to 136,345.68, 188,208.36 and 79,775.28

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Solution

The fourth proportional to 136,345.68, 188,208.36 and 79,775.28 is: 110,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,345.68 : 188,208.36 = 79,775.28 : x
  2. Step 2: Convert to fraction form
    136,345.68/188,208.36 = 79,775.28/x
  3. Step 3: Cross multiply
    136,345.68x = 188,208.36 × 79,775.28
  4. Step 4: Simplify right side
    136,345.68x = 15,014,374,617.34
  5. Step 5: Solve for x
    x = 15,014,374,617.34/136,345.68
  6. Step 6: Final answer
    x = 110,119.91

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