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Finding the Fourth Proportional to 113,370.71, 170,121.77 and 57,215.21

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Solution

The fourth proportional to 113,370.71, 170,121.77 and 57,215.21 is: 85,855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,370.71 : 170,121.77 = 57,215.21 : x
  2. Step 2: Convert to fraction form
    113,370.71/170,121.77 = 57,215.21/x
  3. Step 3: Cross multiply
    113,370.71x = 170,121.77 × 57,215.21
  4. Step 4: Simplify right side
    113,370.71x = 9,733,552,088.55
  5. Step 5: Solve for x
    x = 9,733,552,088.55/113,370.71
  6. Step 6: Final answer
    x = 85,855.97

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