Finding the Fourth Proportional to 129,676.20, 194,295.60 and 107,368.80
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Solution
The fourth proportional to 129,676.20, 194,295.60 and 107,368.80 is: 160,872.12
Step by Step Solution
- Step 1: Write the proportion equation
129,676.20 : 194,295.60 = 107,368.80 : x - Step 2: Convert to fraction form
129,676.20/194,295.60 = 107,368.80/x - Step 3: Cross multiply
129,676.20x = 194,295.60 × 107,368.80 - Step 4: Simplify right side
129,676.20x = 20,861,285,417.28 - Step 5: Solve for x
x = 20,861,285,417.28/129,676.20 - Step 6: Final answer
x = 160,872.12
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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.