Home / 189,540.11-284,231.57-77,144.04

Finding the Fourth Proportional to 189,540.11, 284,231.57 and 77,144.04

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Solution

The fourth proportional to 189,540.11, 284,231.57 and 77,144.04 is: 115,684.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,540.11 : 284,231.57 = 77,144.04 : x
  2. Step 2: Convert to fraction form
    189,540.11/284,231.57 = 77,144.04/x
  3. Step 3: Cross multiply
    189,540.11x = 284,231.57 × 77,144.04
  4. Step 4: Simplify right side
    189,540.11x = 21,926,771,219.62
  5. Step 5: Solve for x
    x = 21,926,771,219.62/189,540.11
  6. Step 6: Final answer
    x = 115,684.07

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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.