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Finding the Fourth Proportional to 106,911.08, 160,319.22 and 56,981.90

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Solution

The fourth proportional to 106,911.08, 160,319.22 and 56,981.90 is: 85,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,911.08 : 160,319.22 = 56,981.90 : x
  2. Step 2: Convert to fraction form
    106,911.08/160,319.22 = 56,981.90/x
  3. Step 3: Cross multiply
    106,911.08x = 160,319.22 × 56,981.90
  4. Step 4: Simplify right side
    106,911.08x = 9,135,293,762.12
  5. Step 5: Solve for x
    x = 9,135,293,762.12/106,911.08
  6. Step 6: Final answer
    x = 85,447.59

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