Home / 126,936.28-190,420.62-42,660.28

Finding the Fourth Proportional to 126,936.28, 190,420.62 and 42,660.28

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Solution

The fourth proportional to 126,936.28, 190,420.62 and 42,660.28 is: 63,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936.28 : 190,420.62 = 42,660.28 : x
  2. Step 2: Convert to fraction form
    126,936.28/190,420.62 = 42,660.28/x
  3. Step 3: Cross multiply
    126,936.28x = 190,420.62 × 42,660.28
  4. Step 4: Simplify right side
    126,936.28x = 8,123,396,966.97
  5. Step 5: Solve for x
    x = 8,123,396,966.97/126,936.28
  6. Step 6: Final answer
    x = 63,995.86

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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.