Home / 127,986.78-192,010.10-43,747.59

Finding the Fourth Proportional to 127,986.78, 192,010.10 and 43,747.59

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Solution

The fourth proportional to 127,986.78, 192,010.10 and 43,747.59 is: 65,631.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,986.78 : 192,010.10 = 43,747.59 : x
  2. Step 2: Convert to fraction form
    127,986.78/192,010.10 = 43,747.59/x
  3. Step 3: Cross multiply
    127,986.78x = 192,010.10 × 43,747.59
  4. Step 4: Simplify right side
    127,986.78x = 8,399,979,631.96
  5. Step 5: Solve for x
    x = 8,399,979,631.96/127,986.78
  6. Step 6: Final answer
    x = 65,631.62

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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.