Finding the Fourth Proportional to 132,139.96, 182,396.49 and 77,689.49
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Solution
The fourth proportional to 132,139.96, 182,396.49 and 77,689.49 is: 107,236.99
Step by Step Solution
- Step 1: Write the proportion equation
132,139.96 : 182,396.49 = 77,689.49 : x - Step 2: Convert to fraction form
132,139.96/182,396.49 = 77,689.49/x - Step 3: Cross multiply
132,139.96x = 182,396.49 × 77,689.49 - Step 4: Simplify right side
132,139.96x = 14,170,290,601.09 - Step 5: Solve for x
x = 14,170,290,601.09/132,139.96 - Step 6: Final answer
x = 107,236.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.