Finding the Fourth Proportional to 163,311.09, 225,363.52 and 91,694.13
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Solution
The fourth proportional to 163,311.09, 225,363.52 and 91,694.13 is: 126,534.65
Step by Step Solution
- Step 1: Write the proportion equation
163,311.09 : 225,363.52 = 91,694.13 : x - Step 2: Convert to fraction form
163,311.09/225,363.52 = 91,694.13/x - Step 3: Cross multiply
163,311.09x = 225,363.52 × 91,694.13 - Step 4: Simplify right side
163,311.09x = 20,664,511,900.14 - Step 5: Solve for x
x = 20,664,511,900.14/163,311.09 - Step 6: Final answer
x = 126,534.65
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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.