Home / 189,940.07-284,919.62-56,821.43

Finding the Fourth Proportional to 189,940.07, 284,919.62 and 56,821.43

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Solution

The fourth proportional to 189,940.07, 284,919.62 and 56,821.43 is: 85,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,940.07 : 284,919.62 = 56,821.43 : x
  2. Step 2: Convert to fraction form
    189,940.07/284,919.62 = 56,821.43/x
  3. Step 3: Cross multiply
    189,940.07x = 284,919.62 × 56,821.43
  4. Step 4: Simplify right side
    189,940.07x = 16,189,538,534.75
  5. Step 5: Solve for x
    x = 16,189,538,534.75/189,940.07
  6. Step 6: Final answer
    x = 85,234.98

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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.