Finding the Fourth Proportional to 126,939.19, 175,174.99 and 69,581.70
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Solution
The fourth proportional to 126,939.19, 175,174.99 and 69,581.70 is: 96,022.15
Step by Step Solution
- Step 1: Write the proportion equation
126,939.19 : 175,174.99 = 69,581.70 : x - Step 2: Convert to fraction form
126,939.19/175,174.99 = 69,581.70/x - Step 3: Cross multiply
126,939.19x = 175,174.99 × 69,581.70 - Step 4: Simplify right side
126,939.19x = 12,188,973,601.68 - Step 5: Solve for x
x = 12,188,973,601.68/126,939.19 - Step 6: Final answer
x = 96,022.15
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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.