Finding the Fourth Proportional to 126,724.20, 174,861.09 and 70,135.44
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Solution
The fourth proportional to 126,724.20, 174,861.09 and 70,135.44 is: 96,776.78
Step by Step Solution
- Step 1: Write the proportion equation
126,724.20 : 174,861.09 = 70,135.44 : x - Step 2: Convert to fraction form
126,724.20/174,861.09 = 70,135.44/x - Step 3: Cross multiply
126,724.20x = 174,861.09 × 70,135.44 - Step 4: Simplify right side
126,724.20x = 12,263,959,486.03 - Step 5: Solve for x
x = 12,263,959,486.03/126,724.20 - Step 6: Final answer
x = 96,776.78
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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.