Finding the Fourth Proportional to 115,786.12, 173,692.86 and 36,872.68
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Solution
The fourth proportional to 115,786.12, 173,692.86 and 36,872.68 is: 55,313.38
Step by Step Solution
- Step 1: Write the proportion equation
115,786.12 : 173,692.86 = 36,872.68 : x - Step 2: Convert to fraction form
115,786.12/173,692.86 = 36,872.68/x - Step 3: Cross multiply
115,786.12x = 173,692.86 × 36,872.68 - Step 4: Simplify right side
115,786.12x = 6,404,521,245.06 - Step 5: Solve for x
x = 6,404,521,245.06/115,786.12 - Step 6: Final answer
x = 55,313.38
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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.