Finding the Fourth Proportional to 171,553.05, 257,346.68 and 71,744.49
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Solution
The fourth proportional to 171,553.05, 257,346.68 and 71,744.49 is: 107,623.89
Step by Step Solution
- Step 1: Write the proportion equation
171,553.05 : 257,346.68 = 71,744.49 : x - Step 2: Convert to fraction form
171,553.05/257,346.68 = 71,744.49/x - Step 3: Cross multiply
171,553.05x = 257,346.68 × 71,744.49 - Step 4: Simplify right side
171,553.05x = 18,463,205,951.07 - Step 5: Solve for x
x = 18,463,205,951.07/171,553.05 - Step 6: Final answer
x = 107,623.89
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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.