Finding the Fourth Proportional to 147,286.67, 203,249.79 and 90,021.92
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Solution
The fourth proportional to 147,286.67, 203,249.79 and 90,021.92 is: 124,226.69
Step by Step Solution
- Step 1: Write the proportion equation
147,286.67 : 203,249.79 = 90,021.92 : x - Step 2: Convert to fraction form
147,286.67/203,249.79 = 90,021.92/x - Step 3: Cross multiply
147,286.67x = 203,249.79 × 90,021.92 - Step 4: Simplify right side
147,286.67x = 18,296,935,319.15 - Step 5: Solve for x
x = 18,296,935,319.15/147,286.67 - Step 6: Final answer
x = 124,226.69
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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.