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Finding the Fourth Proportional to 207,172.32, 310,768.20 and 74,115.60

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Solution

The fourth proportional to 207,172.32, 310,768.20 and 74,115.60 is: 111,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,172.32 : 310,768.20 = 74,115.60 : x
  2. Step 2: Convert to fraction form
    207,172.32/310,768.20 = 74,115.60/x
  3. Step 3: Cross multiply
    207,172.32x = 310,768.20 × 74,115.60
  4. Step 4: Simplify right side
    207,172.32x = 23,032,771,603.92
  5. Step 5: Solve for x
    x = 23,032,771,603.92/207,172.32
  6. Step 6: Final answer
    x = 111,176.88

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