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Finding the Fourth Proportional to 209,172.83, 288,660.74 and 113,679.53

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Solution

The fourth proportional to 209,172.83, 288,660.74 and 113,679.53 is: 156,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,172.83 : 288,660.74 = 113,679.53 : x
  2. Step 2: Convert to fraction form
    209,172.83/288,660.74 = 113,679.53/x
  3. Step 3: Cross multiply
    209,172.83x = 288,660.74 × 113,679.53
  4. Step 4: Simplify right side
    209,172.83x = 32,814,815,240.95
  5. Step 5: Solve for x
    x = 32,814,815,240.95/209,172.83
  6. Step 6: Final answer
    x = 156,878.96

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