Home / 189,912.04-284,778.30-56,745.80

Finding the Fourth Proportional to 189,912.04, 284,778.30 and 56,745.80

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Solution

The fourth proportional to 189,912.04, 284,778.30 and 56,745.80 is: 85,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,912.04 : 284,778.30 = 56,745.80 : x
  2. Step 2: Convert to fraction form
    189,912.04/284,778.30 = 56,745.80/x
  3. Step 3: Cross multiply
    189,912.04x = 284,778.30 × 56,745.80
  4. Step 4: Simplify right side
    189,912.04x = 16,159,972,456.14
  5. Step 5: Solve for x
    x = 16,159,972,456.14/189,912.04
  6. Step 6: Final answer
    x = 85,091.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.