Finding the Fourth Proportional to 107,764.80, 161,625.12 and 67,765.44
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Solution
The fourth proportional to 107,764.80, 161,625.12 and 67,765.44 is: 101,634.28
Step by Step Solution
- Step 1: Write the proportion equation
107,764.80 : 161,625.12 = 67,765.44 : x - Step 2: Convert to fraction form
107,764.80/161,625.12 = 67,765.44/x - Step 3: Cross multiply
107,764.80x = 161,625.12 × 67,765.44 - Step 4: Simplify right side
107,764.80x = 10,952,597,371.85 - Step 5: Solve for x
x = 10,952,597,371.85/107,764.80 - Step 6: Final answer
x = 101,634.28
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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.