Finding the Fourth Proportional to 121,144.76, 181,604.84 and 53,640.84
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Solution
The fourth proportional to 121,144.76, 181,604.84 and 53,640.84 is: 80,411.54
Step by Step Solution
- Step 1: Write the proportion equation
121,144.76 : 181,604.84 = 53,640.84 : x - Step 2: Convert to fraction form
121,144.76/181,604.84 = 53,640.84/x - Step 3: Cross multiply
121,144.76x = 181,604.84 × 53,640.84 - Step 4: Simplify right side
121,144.76x = 9,741,435,897.46 - Step 5: Solve for x
x = 9,741,435,897.46/121,144.76 - Step 6: Final answer
x = 80,411.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.