Finding the Fourth Proportional to 121,331.24, 181,997.34 and 37,091.09
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Solution
The fourth proportional to 121,331.24, 181,997.34 and 37,091.09 is: 55,636.78
Step by Step Solution
- Step 1: Write the proportion equation
121,331.24 : 181,997.34 = 37,091.09 : x - Step 2: Convert to fraction form
121,331.24/181,997.34 = 37,091.09/x - Step 3: Cross multiply
121,331.24x = 181,997.34 × 37,091.09 - Step 4: Simplify right side
121,331.24x = 6,750,479,717.70 - Step 5: Solve for x
x = 6,750,479,717.70/121,331.24 - Step 6: Final answer
x = 55,636.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.