Finding the Fourth Proportional to 68,138.20, 102,166.80 and 41,861.80
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Solution
The fourth proportional to 68,138.20, 102,166.80 and 41,861.80 is: 62,767.82
Step by Step Solution
- Step 1: Write the proportion equation
68,138.20 : 102,166.80 = 41,861.80 : x - Step 2: Convert to fraction form
68,138.20/102,166.80 = 41,861.80/x - Step 3: Cross multiply
68,138.20x = 102,166.80 × 41,861.80 - Step 4: Simplify right side
68,138.20x = 4,276,886,148.24 - Step 5: Solve for x
x = 4,276,886,148.24/68,138.20 - Step 6: Final answer
x = 62,767.82
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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.