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Finding the Fourth Proportional to 100,699.20, 151,039.02 and 30,579.12

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Solution

The fourth proportional to 100,699.20, 151,039.02 and 30,579.12 is: 45,865.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,699.20 : 151,039.02 = 30,579.12 : x
  2. Step 2: Convert to fraction form
    100,699.20/151,039.02 = 30,579.12/x
  3. Step 3: Cross multiply
    100,699.20x = 151,039.02 × 30,579.12
  4. Step 4: Simplify right side
    100,699.20x = 4,618,640,317.26
  5. Step 5: Solve for x
    x = 4,618,640,317.26/100,699.20
  6. Step 6: Final answer
    x = 45,865.71

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