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Finding the Fourth Proportional to 192,489.72, 265,634.84 and 107,606.78

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Solution

The fourth proportional to 192,489.72, 265,634.84 and 107,606.78 is: 148,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,489.72 : 265,634.84 = 107,606.78 : x
  2. Step 2: Convert to fraction form
    192,489.72/265,634.84 = 107,606.78/x
  3. Step 3: Cross multiply
    192,489.72x = 265,634.84 × 107,606.78
  4. Step 4: Simplify right side
    192,489.72x = 28,584,109,725.19
  5. Step 5: Solve for x
    x = 28,584,109,725.19/192,489.72
  6. Step 6: Final answer
    x = 148,496.81

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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.