Finding the Fourth Proportional to 132,705.47, 199,121.94 and 82,772.75
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Solution
The fourth proportional to 132,705.47, 199,121.94 and 82,772.75 is: 124,198.88
Step by Step Solution
- Step 1: Write the proportion equation
132,705.47 : 199,121.94 = 82,772.75 : x - Step 2: Convert to fraction form
132,705.47/199,121.94 = 82,772.75/x - Step 3: Cross multiply
132,705.47x = 199,121.94 × 82,772.75 - Step 4: Simplify right side
132,705.47x = 16,481,870,559.14 - Step 5: Solve for x
x = 16,481,870,559.14/132,705.47 - Step 6: Final answer
x = 124,198.88
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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.