Finding the Fourth Proportional to 135,063.75, 186,382.97 and 74,633.15
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Solution
The fourth proportional to 135,063.75, 186,382.97 and 74,633.15 is: 102,990.98
Step by Step Solution
- Step 1: Write the proportion equation
135,063.75 : 186,382.97 = 74,633.15 : x - Step 2: Convert to fraction form
135,063.75/186,382.97 = 74,633.15/x - Step 3: Cross multiply
135,063.75x = 186,382.97 × 74,633.15 - Step 4: Simplify right side
135,063.75x = 13,910,347,901.53 - Step 5: Solve for x
x = 13,910,347,901.53/135,063.75 - Step 6: Final answer
x = 102,990.98
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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.