Home / 128,222.24-192,355.32-39,474

Finding the Fourth Proportional to 128,222.24, 192,355.32 and 39,474

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Solution

The fourth proportional to 128,222.24, 192,355.32 and 39,474 is: 59,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,222.24 : 192,355.32 = 39,474 : x
  2. Step 2: Convert to fraction form
    128,222.24/192,355.32 = 39,474/x
  3. Step 3: Cross multiply
    128,222.24x = 192,355.32 × 39,474
  4. Step 4: Simplify right side
    128,222.24x = 7,593,033,901.68
  5. Step 5: Solve for x
    x = 7,593,033,901.68/128,222.24
  6. Step 6: Final answer
    x = 59,217.76

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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.