Finding the Fourth Proportional to 187,821.69, 281,823.66 and 82,626.99
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Solution
The fourth proportional to 187,821.69, 281,823.66 and 82,626.99 is: 123,980.57
Step by Step Solution
- Step 1: Write the proportion equation
187,821.69 : 281,823.66 = 82,626.99 : x - Step 2: Convert to fraction form
187,821.69/281,823.66 = 82,626.99/x - Step 3: Cross multiply
187,821.69x = 281,823.66 × 82,626.99 - Step 4: Simplify right side
187,821.69x = 23,286,240,736.58 - Step 5: Solve for x
x = 23,286,240,736.58/187,821.69 - Step 6: Final answer
x = 123,980.57
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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.