Finding the Fourth Proportional to 126,861.75, 175,066.88 and 73,149.03
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Solution
The fourth proportional to 126,861.75, 175,066.88 and 73,149.03 is: 100,944.32
Step by Step Solution
- Step 1: Write the proportion equation
126,861.75 : 175,066.88 = 73,149.03 : x - Step 2: Convert to fraction form
126,861.75/175,066.88 = 73,149.03/x - Step 3: Cross multiply
126,861.75x = 175,066.88 × 73,149.03 - Step 4: Simplify right side
126,861.75x = 12,805,972,457.13 - Step 5: Solve for x
x = 12,805,972,457.13/126,861.75 - Step 6: Final answer
x = 100,944.32
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1.5x scale
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.