Finding the Fourth Proportional to 107,212.70, 160,819.05 and 48,163.70
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Solution
The fourth proportional to 107,212.70, 160,819.05 and 48,163.70 is: 72,245.55
Step by Step Solution
- Step 1: Write the proportion equation
107,212.70 : 160,819.05 = 48,163.70 : x - Step 2: Convert to fraction form
107,212.70/160,819.05 = 48,163.70/x - Step 3: Cross multiply
107,212.70x = 160,819.05 × 48,163.70 - Step 4: Simplify right side
107,212.70x = 7,745,640,478.49 - Step 5: Solve for x
x = 7,745,640,478.49/107,212.70 - Step 6: Final answer
x = 72,245.55
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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.