Home / 120,375.12-180,557.28-57,149.04

Finding the Fourth Proportional to 120,375.12, 180,557.28 and 57,149.04

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Solution

The fourth proportional to 120,375.12, 180,557.28 and 57,149.04 is: 85,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,375.12 : 180,557.28 = 57,149.04 : x
  2. Step 2: Convert to fraction form
    120,375.12/180,557.28 = 57,149.04/x
  3. Step 3: Cross multiply
    120,375.12x = 180,557.28 × 57,149.04
  4. Step 4: Simplify right side
    120,375.12x = 10,318,675,217.01
  5. Step 5: Solve for x
    x = 10,318,675,217.01/120,375.12
  6. Step 6: Final answer
    x = 85,721.00

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