Home / 126,796.20-190,087.26-79,945.80

Finding the Fourth Proportional to 126,796.20, 190,087.26 and 79,945.80

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Solution

The fourth proportional to 126,796.20, 190,087.26 and 79,945.80 is: 119,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,796.20 : 190,087.26 = 79,945.80 : x
  2. Step 2: Convert to fraction form
    126,796.20/190,087.26 = 79,945.80/x
  3. Step 3: Cross multiply
    126,796.20x = 190,087.26 × 79,945.80
  4. Step 4: Simplify right side
    126,796.20x = 15,196,678,070.51
  5. Step 5: Solve for x
    x = 15,196,678,070.51/126,796.20
  6. Step 6: Final answer
    x = 119,851.21

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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.