Finding the Fourth Proportional to 121,957.71, 182,936.56 and 80,394.99
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Solution
The fourth proportional to 121,957.71, 182,936.56 and 80,394.99 is: 120,592.48
Step by Step Solution
- Step 1: Write the proportion equation
121,957.71 : 182,936.56 = 80,394.99 : x - Step 2: Convert to fraction form
121,957.71/182,936.56 = 80,394.99/x - Step 3: Cross multiply
121,957.71x = 182,936.56 × 80,394.99 - Step 4: Simplify right side
121,957.71x = 14,707,181,997.15 - Step 5: Solve for x
x = 14,707,181,997.15/121,957.71 - Step 6: Final answer
x = 120,592.48
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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.