Finding the Fourth Proportional to 129,428.97, 194,213.22 and 54,600.99
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Solution
The fourth proportional to 129,428.97, 194,213.22 and 54,600.99 is: 81,930.92
Step by Step Solution
- Step 1: Write the proportion equation
129,428.97 : 194,213.22 = 54,600.99 : x - Step 2: Convert to fraction form
129,428.97/194,213.22 = 54,600.99/x - Step 3: Cross multiply
129,428.97x = 194,213.22 × 54,600.99 - Step 4: Simplify right side
129,428.97x = 10,604,234,083.09 - Step 5: Solve for x
x = 10,604,234,083.09/129,428.97 - Step 6: Final answer
x = 81,930.92
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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.