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Finding the Fourth Proportional to 192,728.88, 265,977 and 107,845.20

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Solution

The fourth proportional to 192,728.88, 265,977 and 107,845.20 is: 148,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,728.88 : 265,977 = 107,845.20 : x
  2. Step 2: Convert to fraction form
    192,728.88/265,977 = 107,845.20/x
  3. Step 3: Cross multiply
    192,728.88x = 265,977 × 107,845.20
  4. Step 4: Simplify right side
    192,728.88x = 28,684,342,760.40
  5. Step 5: Solve for x
    x = 28,684,342,760.40/192,728.88
  6. Step 6: Final answer
    x = 148,832.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.