Finding the Fourth Proportional to 163,399.33, 225,478.11 and 91,776.97
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Solution
The fourth proportional to 163,399.33, 225,478.11 and 91,776.97 is: 126,644.94
Step by Step Solution
- Step 1: Write the proportion equation
163,399.33 : 225,478.11 = 91,776.97 : x - Step 2: Convert to fraction form
163,399.33/225,478.11 = 91,776.97/x - Step 3: Cross multiply
163,399.33x = 225,478.11 × 91,776.97 - Step 4: Simplify right side
163,399.33x = 20,693,697,737.13 - Step 5: Solve for x
x = 20,693,697,737.13/163,399.33 - Step 6: Final answer
x = 126,644.94
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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.