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Finding the Fourth Proportional to 156,449.72, 215,900.62 and 84,829.72

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Solution

The fourth proportional to 156,449.72, 215,900.62 and 84,829.72 is: 117,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,449.72 : 215,900.62 = 84,829.72 : x
  2. Step 2: Convert to fraction form
    156,449.72/215,900.62 = 84,829.72/x
  3. Step 3: Cross multiply
    156,449.72x = 215,900.62 × 84,829.72
  4. Step 4: Simplify right side
    156,449.72x = 18,314,789,142.43
  5. Step 5: Solve for x
    x = 18,314,789,142.43/156,449.72
  6. Step 6: Final answer
    x = 117,065.02

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