Finding the Fourth Proportional to 71,249.40, 106,874.10 and 68,527.80
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Solution
The fourth proportional to 71,249.40, 106,874.10 and 68,527.80 is: 102,791.70
Step by Step Solution
- Step 1: Write the proportion equation
71,249.40 : 106,874.10 = 68,527.80 : x - Step 2: Convert to fraction form
71,249.40/106,874.10 = 68,527.80/x - Step 3: Cross multiply
71,249.40x = 106,874.10 × 68,527.80 - Step 4: Simplify right side
71,249.40x = 7,323,846,949.98 - Step 5: Solve for x
x = 7,323,846,949.98/71,249.40 - Step 6: Final answer
x = 102,791.70
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1.5x scale
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.