Home / 128,359.73-192,634.19-60,891.98

Finding the Fourth Proportional to 128,359.73, 192,634.19 and 60,891.98

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Solution

The fourth proportional to 128,359.73, 192,634.19 and 60,891.98 is: 91,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,359.73 : 192,634.19 = 60,891.98 : x
  2. Step 2: Convert to fraction form
    128,359.73/192,634.19 = 60,891.98/x
  3. Step 3: Cross multiply
    128,359.73x = 192,634.19 × 60,891.98
  4. Step 4: Simplify right side
    128,359.73x = 11,729,876,433.86
  5. Step 5: Solve for x
    x = 11,729,876,433.86/128,359.73
  6. Step 6: Final answer
    x = 91,382.84

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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.