Finding the Fourth Proportional to 107,891.92, 161,889.24 and 48,745.68
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Solution
The fourth proportional to 107,891.92, 161,889.24 and 48,745.68 is: 73,141.72
Step by Step Solution
- Step 1: Write the proportion equation
107,891.92 : 161,889.24 = 48,745.68 : x - Step 2: Convert to fraction form
107,891.92/161,889.24 = 48,745.68/x - Step 3: Cross multiply
107,891.92x = 161,889.24 × 48,745.68 - Step 4: Simplify right side
107,891.92x = 7,891,401,088.48 - Step 5: Solve for x
x = 7,891,401,088.48/107,891.92 - Step 6: Final answer
x = 73,141.72
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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.