Finding the Fourth Proportional to 178,198.62, 245,915.64 and 102,747.12
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Solution
The fourth proportional to 178,198.62, 245,915.64 and 102,747.12 is: 141,791.92
Step by Step Solution
- Step 1: Write the proportion equation
178,198.62 : 245,915.64 = 102,747.12 : x - Step 2: Convert to fraction form
178,198.62/245,915.64 = 102,747.12/x - Step 3: Cross multiply
178,198.62x = 245,915.64 × 102,747.12 - Step 4: Simplify right side
178,198.62x = 25,267,123,772.96 - Step 5: Solve for x
x = 25,267,123,772.96/178,198.62 - Step 6: Final answer
x = 141,791.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.