Finding the Fourth Proportional to 137,674.44, 206,574.84 and 81,625.68
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Solution
The fourth proportional to 137,674.44, 206,574.84 and 81,625.68 is: 122,475.98
Step by Step Solution
- Step 1: Write the proportion equation
137,674.44 : 206,574.84 = 81,625.68 : x - Step 2: Convert to fraction form
137,674.44/206,574.84 = 81,625.68/x - Step 3: Cross multiply
137,674.44x = 206,574.84 × 81,625.68 - Step 4: Simplify right side
137,674.44x = 16,861,811,785.89 - Step 5: Solve for x
x = 16,861,811,785.89/137,674.44 - Step 6: Final answer
x = 122,475.98
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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.