Home / 126,137.17-188,991.64-76,112.15

Finding the Fourth Proportional to 126,137.17, 188,991.64 and 76,112.15

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Solution

The fourth proportional to 126,137.17, 188,991.64 and 76,112.15 is: 114,039.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.17 : 188,991.64 = 76,112.15 : x
  2. Step 2: Convert to fraction form
    126,137.17/188,991.64 = 76,112.15/x
  3. Step 3: Cross multiply
    126,137.17x = 188,991.64 × 76,112.15
  4. Step 4: Simplify right side
    126,137.17x = 14,384,558,917.19
  5. Step 5: Solve for x
    x = 14,384,558,917.19/126,137.17
  6. Step 6: Final answer
    x = 114,039.02

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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.