Finding the Fourth Proportional to 192,163.80, 288,072.90 and 125,635.80
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Solution
The fourth proportional to 192,163.80, 288,072.90 and 125,635.80 is: 188,340.72
Step by Step Solution
- Step 1: Write the proportion equation
192,163.80 : 288,072.90 = 125,635.80 : x - Step 2: Convert to fraction form
192,163.80/288,072.90 = 125,635.80/x - Step 3: Cross multiply
192,163.80x = 288,072.90 × 125,635.80 - Step 4: Simplify right side
192,163.80x = 36,192,269,249.82 - Step 5: Solve for x
x = 36,192,269,249.82/192,163.80 - Step 6: Final answer
x = 188,340.72
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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.