Finding the Fourth Proportional to 192,855.23, 289,328.70 and 80,472.99
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Solution
The fourth proportional to 192,855.23, 289,328.70 and 80,472.99 is: 120,728.62
Step by Step Solution
- Step 1: Write the proportion equation
192,855.23 : 289,328.70 = 80,472.99 : x - Step 2: Convert to fraction form
192,855.23/289,328.70 = 80,472.99/x - Step 3: Cross multiply
192,855.23x = 289,328.70 × 80,472.99 - Step 4: Simplify right side
192,855.23x = 23,283,145,581.81 - Step 5: Solve for x
x = 23,283,145,581.81/192,855.23 - Step 6: Final answer
x = 120,728.62
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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.