Finding the Fourth Proportional to 127,879.36, 191,589.20 and 75,260.14
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Solution
The fourth proportional to 127,879.36, 191,589.20 and 75,260.14 is: 112,754.94
Step by Step Solution
- Step 1: Write the proportion equation
127,879.36 : 191,589.20 = 75,260.14 : x - Step 2: Convert to fraction form
127,879.36/191,589.20 = 75,260.14/x - Step 3: Cross multiply
127,879.36x = 191,589.20 × 75,260.14 - Step 4: Simplify right side
127,879.36x = 14,419,029,441.44 - Step 5: Solve for x
x = 14,419,029,441.44/127,879.36 - Step 6: Final answer
x = 112,754.94
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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.