Home / 126,137.54-188,992.20-76,112.53

Finding the Fourth Proportional to 126,137.54, 188,992.20 and 76,112.53

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Solution

The fourth proportional to 126,137.54, 188,992.20 and 76,112.53 is: 114,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.54 : 188,992.20 = 76,112.53 : x
  2. Step 2: Convert to fraction form
    126,137.54/188,992.20 = 76,112.53/x
  3. Step 3: Cross multiply
    126,137.54x = 188,992.20 × 76,112.53
  4. Step 4: Simplify right side
    126,137.54x = 14,384,674,305.21
  5. Step 5: Solve for x
    x = 14,384,674,305.21/126,137.54
  6. Step 6: Final answer
    x = 114,039.60

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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.