Finding the Fourth Proportional to 163,201.68, 225,217.80 and 91,582.02
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Solution
The fourth proportional to 163,201.68, 225,217.80 and 91,582.02 is: 126,382.90
Step by Step Solution
- Step 1: Write the proportion equation
163,201.68 : 225,217.80 = 91,582.02 : x - Step 2: Convert to fraction form
163,201.68/225,217.80 = 91,582.02/x - Step 3: Cross multiply
163,201.68x = 225,217.80 × 91,582.02 - Step 4: Simplify right side
163,201.68x = 20,625,901,063.96 - Step 5: Solve for x
x = 20,625,901,063.96/163,201.68 - Step 6: Final answer
x = 126,382.90
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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.