Finding the Fourth Proportional to 131,163.20, 196,744.80 and 131,163.20
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Solution
The fourth proportional to 131,163.20, 196,744.80 and 131,163.20 is: 196,744.80
Step by Step Solution
- Step 1: Write the proportion equation
131,163.20 : 196,744.80 = 131,163.20 : x - Step 2: Convert to fraction form
131,163.20/196,744.80 = 131,163.20/x - Step 3: Cross multiply
131,163.20x = 196,744.80 × 131,163.20 - Step 4: Simplify right side
131,163.20x = 25,805,677,551.36 - Step 5: Solve for x
x = 25,805,677,551.36/131,163.20 - Step 6: Final answer
x = 196,744.80
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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.