Home / 189,839.28-284,837.49-83,168.07

Finding the Fourth Proportional to 189,839.28, 284,837.49 and 83,168.07

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Solution

The fourth proportional to 189,839.28, 284,837.49 and 83,168.07 is: 124,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,839.28 : 284,837.49 = 83,168.07 : x
  2. Step 2: Convert to fraction form
    189,839.28/284,837.49 = 83,168.07/x
  3. Step 3: Cross multiply
    189,839.28x = 284,837.49 × 83,168.07
  4. Step 4: Simplify right side
    189,839.28x = 23,689,384,306.94
  5. Step 5: Solve for x
    x = 23,689,384,306.94/189,839.28
  6. Step 6: Final answer
    x = 124,786.53

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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.