Finding the Fourth Proportional to 126,796.76, 174,939.84 and 73,074.43
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Solution
The fourth proportional to 126,796.76, 174,939.84 and 73,074.43 is: 100,819.84
Step by Step Solution
- Step 1: Write the proportion equation
126,796.76 : 174,939.84 = 73,074.43 : x - Step 2: Convert to fraction form
126,796.76/174,939.84 = 73,074.43/x - Step 3: Cross multiply
126,796.76x = 174,939.84 × 73,074.43 - Step 4: Simplify right side
126,796.76x = 12,783,628,654.94 - Step 5: Solve for x
x = 12,783,628,654.94/126,796.76 - Step 6: Final answer
x = 100,819.84
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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.