Finding the Fourth Proportional to 197,163.83, 272,086.22 and 106,519.75
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Solution
The fourth proportional to 197,163.83, 272,086.22 and 106,519.75 is: 146,997.32
Step by Step Solution
- Step 1: Write the proportion equation
197,163.83 : 272,086.22 = 106,519.75 : x - Step 2: Convert to fraction form
197,163.83/272,086.22 = 106,519.75/x - Step 3: Cross multiply
197,163.83x = 272,086.22 × 106,519.75 - Step 4: Simplify right side
197,163.83x = 28,982,554,920.03 - Step 5: Solve for x
x = 28,982,554,920.03/197,163.83 - Step 6: Final answer
x = 146,997.32
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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.