Finding the Fourth Proportional to 126,236.68, 174,207.18 and 69,649.72
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Solution
The fourth proportional to 126,236.68, 174,207.18 and 69,649.72 is: 96,116.92
Step by Step Solution
- Step 1: Write the proportion equation
126,236.68 : 174,207.18 = 69,649.72 : x - Step 2: Convert to fraction form
126,236.68/174,207.18 = 69,649.72/x - Step 3: Cross multiply
126,236.68x = 174,207.18 × 69,649.72 - Step 4: Simplify right side
126,236.68x = 12,133,481,308.99 - Step 5: Solve for x
x = 12,133,481,308.99/126,236.68 - Step 6: Final answer
x = 96,116.92
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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.