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Finding the Fourth Proportional to 157,361.12, 217,155.60 and 85,741.64

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Solution

The fourth proportional to 157,361.12, 217,155.60 and 85,741.64 is: 118,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,361.12 : 217,155.60 = 85,741.64 : x
  2. Step 2: Convert to fraction form
    157,361.12/217,155.60 = 85,741.64/x
  3. Step 3: Cross multiply
    157,361.12x = 217,155.60 × 85,741.64
  4. Step 4: Simplify right side
    157,361.12x = 18,619,277,279.18
  5. Step 5: Solve for x
    x = 18,619,277,279.18/157,361.12
  6. Step 6: Final answer
    x = 118,321.97

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