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Finding the Fourth Proportional to 123,311.88, 170,173.82 and 74,897.46

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Solution

The fourth proportional to 123,311.88, 170,173.82 and 74,897.46 is: 103,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,311.88 : 170,173.82 = 74,897.46 : x
  2. Step 2: Convert to fraction form
    123,311.88/170,173.82 = 74,897.46/x
  3. Step 3: Cross multiply
    123,311.88x = 170,173.82 × 74,897.46
  4. Step 4: Simplify right side
    123,311.88x = 12,745,586,502.01
  5. Step 5: Solve for x
    x = 12,745,586,502.01/123,311.88
  6. Step 6: Final answer
    x = 103,360.57

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