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Finding the Fourth Proportional to 100,580.78, 151,003.10 and 67,449.15

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Solution

The fourth proportional to 100,580.78, 151,003.10 and 67,449.15 is: 101,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,580.78 : 151,003.10 = 67,449.15 : x
  2. Step 2: Convert to fraction form
    100,580.78/151,003.10 = 67,449.15/x
  3. Step 3: Cross multiply
    100,580.78x = 151,003.10 × 67,449.15
  4. Step 4: Simplify right side
    100,580.78x = 10,185,030,910.99
  5. Step 5: Solve for x
    x = 10,185,030,910.99/100,580.78
  6. Step 6: Final answer
    x = 101,262.20

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