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Finding the Fourth Proportional to 192,891.06, 289,255.41 and 72,927.72

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Solution

The fourth proportional to 192,891.06, 289,255.41 and 72,927.72 is: 109,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,891.06 : 289,255.41 = 72,927.72 : x
  2. Step 2: Convert to fraction form
    192,891.06/289,255.41 = 72,927.72/x
  3. Step 3: Cross multiply
    192,891.06x = 289,255.41 × 72,927.72
  4. Step 4: Simplify right side
    192,891.06x = 21,094,737,548.97
  5. Step 5: Solve for x
    x = 21,094,737,548.97/192,891.06
  6. Step 6: Final answer
    x = 109,360.89

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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.