Home / 126,578.45-174,677.81-71,383.38

Finding the Fourth Proportional to 126,578.45, 174,677.81 and 71,383.38

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Solution

The fourth proportional to 126,578.45, 174,677.81 and 71,383.38 is: 98,508.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,578.45 : 174,677.81 = 71,383.38 : x
  2. Step 2: Convert to fraction form
    126,578.45/174,677.81 = 71,383.38/x
  3. Step 3: Cross multiply
    126,578.45x = 174,677.81 × 71,383.38
  4. Step 4: Simplify right side
    126,578.45x = 12,469,092,131.88
  5. Step 5: Solve for x
    x = 12,469,092,131.88/126,578.45
  6. Step 6: Final answer
    x = 98,508.81

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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.