Finding the Fourth Proportional to 181,981.75, 251,063.21 and 121,591.84
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Solution
The fourth proportional to 181,981.75, 251,063.21 and 121,591.84 is: 167,748.90
Step by Step Solution
- Step 1: Write the proportion equation
181,981.75 : 251,063.21 = 121,591.84 : x - Step 2: Convert to fraction form
181,981.75/251,063.21 = 121,591.84/x - Step 3: Cross multiply
181,981.75x = 251,063.21 × 121,591.84 - Step 4: Simplify right side
181,981.75x = 30,527,237,660.21 - Step 5: Solve for x
x = 30,527,237,660.21/181,981.75 - Step 6: Final answer
x = 167,748.90
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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.