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Finding the Fourth Proportional to 209,181.58, 288,672.81 and 113,688.28

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Solution

The fourth proportional to 209,181.58, 288,672.81 and 113,688.28 is: 156,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,181.58 : 288,672.81 = 113,688.28 : x
  2. Step 2: Convert to fraction form
    209,181.58/288,672.81 = 113,688.28/x
  3. Step 3: Cross multiply
    209,181.58x = 288,672.81 × 113,688.28
  4. Step 4: Simplify right side
    209,181.58x = 32,818,713,808.30
  5. Step 5: Solve for x
    x = 32,818,713,808.30/209,181.58
  6. Step 6: Final answer
    x = 156,891.04

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