Finding the Fourth Proportional to 139,206.20, 192,104.67 and 75,543.99
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Solution
The fourth proportional to 139,206.20, 192,104.67 and 75,543.99 is: 104,250.77
Step by Step Solution
- Step 1: Write the proportion equation
139,206.20 : 192,104.67 = 75,543.99 : x - Step 2: Convert to fraction form
139,206.20/192,104.67 = 75,543.99/x - Step 3: Cross multiply
139,206.20x = 192,104.67 × 75,543.99 - Step 4: Simplify right side
139,206.20x = 14,512,353,269.43 - Step 5: Solve for x
x = 14,512,353,269.43/139,206.20 - Step 6: Final answer
x = 104,250.77
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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.