Home / 126,736.36-174,939.90-73,042.78

Finding the Fourth Proportional to 126,736.36, 174,939.90 and 73,042.78

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Solution

The fourth proportional to 126,736.36, 174,939.90 and 73,042.78 is: 100,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,736.36 : 174,939.90 = 73,042.78 : x
  2. Step 2: Convert to fraction form
    126,736.36/174,939.90 = 73,042.78/x
  3. Step 3: Cross multiply
    126,736.36x = 174,939.90 × 73,042.78
  4. Step 4: Simplify right side
    126,736.36x = 12,778,096,628.92
  5. Step 5: Solve for x
    x = 12,778,096,628.92/126,736.36
  6. Step 6: Final answer
    x = 100,824.24

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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.