Finding the Fourth Proportional to 163,542.19, 225,694.62 and 91,921.99
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Solution
The fourth proportional to 163,542.19, 225,694.62 and 91,921.99 is: 126,855.94
Step by Step Solution
- Step 1: Write the proportion equation
163,542.19 : 225,694.62 = 91,921.99 : x - Step 2: Convert to fraction form
163,542.19/225,694.62 = 91,921.99/x - Step 3: Cross multiply
163,542.19x = 225,694.62 × 91,921.99 - Step 4: Simplify right side
163,542.19x = 20,746,298,602.69 - Step 5: Solve for x
x = 20,746,298,602.69/163,542.19 - Step 6: Final answer
x = 126,855.94
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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.