Finding the Fourth Proportional to 129,628.98, 194,436.99 and 50,757.66
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Solution
The fourth proportional to 129,628.98, 194,436.99 and 50,757.66 is: 76,133.95
Step by Step Solution
- Step 1: Write the proportion equation
129,628.98 : 194,436.99 = 50,757.66 : x - Step 2: Convert to fraction form
129,628.98/194,436.99 = 50,757.66/x - Step 3: Cross multiply
129,628.98x = 194,436.99 × 50,757.66 - Step 4: Simplify right side
129,628.98x = 9,869,166,629.84 - Step 5: Solve for x
x = 9,869,166,629.84/129,628.98 - Step 6: Final answer
x = 76,133.95
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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.