Finding the Fourth Proportional to 126,717.42, 190,037.64 and 66,713.42
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Solution
The fourth proportional to 126,717.42, 190,037.64 and 66,713.42 is: 100,049.87
Step by Step Solution
- Step 1: Write the proportion equation
126,717.42 : 190,037.64 = 66,713.42 : x - Step 2: Convert to fraction form
126,717.42/190,037.64 = 66,713.42/x - Step 3: Cross multiply
126,717.42x = 190,037.64 × 66,713.42 - Step 4: Simplify right side
126,717.42x = 12,678,060,893.13 - Step 5: Solve for x
x = 12,678,060,893.13/126,717.42 - Step 6: Final answer
x = 100,049.87
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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.