Finding the Fourth Proportional to 140,617.40, 194,049.42 and 76,953.92
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Solution
The fourth proportional to 140,617.40, 194,049.42 and 76,953.92 is: 106,194.99
Step by Step Solution
- Step 1: Write the proportion equation
140,617.40 : 194,049.42 = 76,953.92 : x - Step 2: Convert to fraction form
140,617.40/194,049.42 = 76,953.92/x - Step 3: Cross multiply
140,617.40x = 194,049.42 × 76,953.92 - Step 4: Simplify right side
140,617.40x = 14,932,863,542.73 - Step 5: Solve for x
x = 14,932,863,542.73/140,617.40 - Step 6: Final answer
x = 106,194.99
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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.