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Finding the Fourth Proportional to 157,397.06, 217,201.61 and 85,775.54

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Solution

The fourth proportional to 157,397.06, 217,201.61 and 85,775.54 is: 118,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,397.06 : 217,201.61 = 85,775.54 : x
  2. Step 2: Convert to fraction form
    157,397.06/217,201.61 = 85,775.54/x
  3. Step 3: Cross multiply
    157,397.06x = 217,201.61 × 85,775.54
  4. Step 4: Simplify right side
    157,397.06x = 18,630,586,230.95
  5. Step 5: Solve for x
    x = 18,630,586,230.95/157,397.06
  6. Step 6: Final answer
    x = 118,366.80

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