Finding the Fourth Proportional to 102,786.57, 154,140.98 and 43,650.09
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Solution
The fourth proportional to 102,786.57, 154,140.98 and 43,650.09 is: 65,458.62
Step by Step Solution
- Step 1: Write the proportion equation
102,786.57 : 154,140.98 = 43,650.09 : x - Step 2: Convert to fraction form
102,786.57/154,140.98 = 43,650.09/x - Step 3: Cross multiply
102,786.57x = 154,140.98 × 43,650.09 - Step 4: Simplify right side
102,786.57x = 6,728,267,431.44 - Step 5: Solve for x
x = 6,728,267,431.44/102,786.57 - Step 6: Final answer
x = 65,458.62
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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.