Finding the Fourth Proportional to 144,163.50, 198,944.84 and 79,637.18
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Solution
The fourth proportional to 144,163.50, 198,944.84 and 79,637.18 is: 109,898.86
Step by Step Solution
- Step 1: Write the proportion equation
144,163.50 : 198,944.84 = 79,637.18 : x - Step 2: Convert to fraction form
144,163.50/198,944.84 = 79,637.18/x - Step 3: Cross multiply
144,163.50x = 198,944.84 × 79,637.18 - Step 4: Simplify right side
144,163.50x = 15,843,404,640.24 - Step 5: Solve for x
x = 15,843,404,640.24/144,163.50 - Step 6: Final answer
x = 109,898.86
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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.