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Finding the Fourth Proportional to 124,820.80, 187,231.20 and 54,836.80

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Solution

The fourth proportional to 124,820.80, 187,231.20 and 54,836.80 is: 82,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,820.80 : 187,231.20 = 54,836.80 : x
  2. Step 2: Convert to fraction form
    124,820.80/187,231.20 = 54,836.80/x
  3. Step 3: Cross multiply
    124,820.80x = 187,231.20 × 54,836.80
  4. Step 4: Simplify right side
    124,820.80x = 10,267,159,868.16
  5. Step 5: Solve for x
    x = 10,267,159,868.16/124,820.80
  6. Step 6: Final answer
    x = 82,255.20

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