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Finding the Fourth Proportional to 215,669.61, 323,349.69 and 82,437.57

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Solution

The fourth proportional to 215,669.61, 323,349.69 and 82,437.57 is: 123,597.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,669.61 : 323,349.69 = 82,437.57 : x
  2. Step 2: Convert to fraction form
    215,669.61/323,349.69 = 82,437.57/x
  3. Step 3: Cross multiply
    215,669.61x = 323,349.69 × 82,437.57
  4. Step 4: Simplify right side
    215,669.61x = 26,656,162,703.85
  5. Step 5: Solve for x
    x = 26,656,162,703.85/215,669.61
  6. Step 6: Final answer
    x = 123,597.21

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