Home / 126,137.84-188,992.65-76,112.82

Finding the Fourth Proportional to 126,137.84, 188,992.65 and 76,112.82

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Solution

The fourth proportional to 126,137.84, 188,992.65 and 76,112.82 is: 114,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.84 : 188,992.65 = 76,112.82 : x
  2. Step 2: Convert to fraction form
    126,137.84/188,992.65 = 76,112.82/x
  3. Step 3: Cross multiply
    126,137.84x = 188,992.65 × 76,112.82
  4. Step 4: Simplify right side
    126,137.84x = 14,384,763,170.21
  5. Step 5: Solve for x
    x = 14,384,763,170.21/126,137.84
  6. Step 6: Final answer
    x = 114,040.03

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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.