Finding the Fourth Proportional to 129,523.70, 194,103.30 and 102,915.20
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Solution
The fourth proportional to 129,523.70, 194,103.30 and 102,915.20 is: 154,227.99
Step by Step Solution
- Step 1: Write the proportion equation
129,523.70 : 194,103.30 = 102,915.20 : x - Step 2: Convert to fraction form
129,523.70/194,103.30 = 102,915.20/x - Step 3: Cross multiply
129,523.70x = 194,103.30 × 102,915.20 - Step 4: Simplify right side
129,523.70x = 19,976,179,940.16 - Step 5: Solve for x
x = 19,976,179,940.16/129,523.70 - Step 6: Final answer
x = 154,227.99
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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.