Home / 189,722.88-284,517.20-83,158.56

Finding the Fourth Proportional to 189,722.88, 284,517.20 and 83,158.56

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Solution

The fourth proportional to 189,722.88, 284,517.20 and 83,158.56 is: 124,708.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,722.88 : 284,517.20 = 83,158.56 : x
  2. Step 2: Convert to fraction form
    189,722.88/284,517.20 = 83,158.56/x
  3. Step 3: Cross multiply
    189,722.88x = 284,517.20 × 83,158.56
  4. Step 4: Simplify right side
    189,722.88x = 23,660,040,647.23
  5. Step 5: Solve for x
    x = 23,660,040,647.23/189,722.88
  6. Step 6: Final answer
    x = 124,708.42

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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.