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Finding the Fourth Proportional to 157,317.20, 217,099.60 and 85,697.84

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Solution

The fourth proportional to 157,317.20, 217,099.60 and 85,697.84 is: 118,264.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,317.20 : 217,099.60 = 85,697.84 : x
  2. Step 2: Convert to fraction form
    157,317.20/217,099.60 = 85,697.84/x
  3. Step 3: Cross multiply
    157,317.20x = 217,099.60 × 85,697.84
  4. Step 4: Simplify right side
    157,317.20x = 18,604,966,784.86
  5. Step 5: Solve for x
    x = 18,604,966,784.86/157,317.20
  6. Step 6: Final answer
    x = 118,264.03

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