Finding the Fourth Proportional to 143,592.09, 198,163.67 and 79,933.97
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Solution
The fourth proportional to 143,592.09, 198,163.67 and 79,933.97 is: 110,312.54
Step by Step Solution
- Step 1: Write the proportion equation
143,592.09 : 198,163.67 = 79,933.97 : x - Step 2: Convert to fraction form
143,592.09/198,163.67 = 79,933.97/x - Step 3: Cross multiply
143,592.09x = 198,163.67 × 79,933.97 - Step 4: Simplify right side
143,592.09x = 15,840,007,462.38 - Step 5: Solve for x
x = 15,840,007,462.38/143,592.09 - Step 6: Final answer
x = 110,312.54
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1.5x scale
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.