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Finding the Fourth Proportional to 113,082.80, 169,624.20 and 66,426.80

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Solution

The fourth proportional to 113,082.80, 169,624.20 and 66,426.80 is: 99,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,082.80 : 169,624.20 = 66,426.80 : x
  2. Step 2: Convert to fraction form
    113,082.80/169,624.20 = 66,426.80/x
  3. Step 3: Cross multiply
    113,082.80x = 169,624.20 × 66,426.80
  4. Step 4: Simplify right side
    113,082.80x = 11,267,592,808.56
  5. Step 5: Solve for x
    x = 11,267,592,808.56/113,082.80
  6. Step 6: Final answer
    x = 99,640.20

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