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Finding the Fourth Proportional to 137,221.90, 205,826.67 and 57,226.93

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Solution

The fourth proportional to 137,221.90, 205,826.67 and 57,226.93 is: 85,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,221.90 : 205,826.67 = 57,226.93 : x
  2. Step 2: Convert to fraction form
    137,221.90/205,826.67 = 57,226.93/x
  3. Step 3: Cross multiply
    137,221.90x = 205,826.67 × 57,226.93
  4. Step 4: Simplify right side
    137,221.90x = 11,778,828,436.22
  5. Step 5: Solve for x
    x = 11,778,828,436.22/137,221.90
  6. Step 6: Final answer
    x = 85,837.82

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