Home / 128,076.33-192,123.75-49,190.58

Finding the Fourth Proportional to 128,076.33, 192,123.75 and 49,190.58

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Solution

The fourth proportional to 128,076.33, 192,123.75 and 49,190.58 is: 73,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,076.33 : 192,123.75 = 49,190.58 : x
  2. Step 2: Convert to fraction form
    128,076.33/192,123.75 = 49,190.58/x
  3. Step 3: Cross multiply
    128,076.33x = 192,123.75 × 49,190.58
  4. Step 4: Simplify right side
    128,076.33x = 9,450,678,694.28
  5. Step 5: Solve for x
    x = 9,450,678,694.28/128,076.33
  6. Step 6: Final answer
    x = 73,789.42

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1.5x scale

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.