Finding the Fourth Proportional to 187,809.69, 281,805.66 and 82,614.99
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Solution
The fourth proportional to 187,809.69, 281,805.66 and 82,614.99 is: 123,962.57
Step by Step Solution
- Step 1: Write the proportion equation
187,809.69 : 281,805.66 = 82,614.99 : x - Step 2: Convert to fraction form
187,809.69/281,805.66 = 82,614.99/x - Step 3: Cross multiply
187,809.69x = 281,805.66 × 82,614.99 - Step 4: Simplify right side
187,809.69x = 23,281,371,782.84 - Step 5: Solve for x
x = 23,281,371,782.84/187,809.69 - Step 6: Final answer
x = 123,962.57
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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.