Finding the Fourth Proportional to 80,186.19, 120,372.45 and 46,930.12
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Solution
The fourth proportional to 80,186.19, 120,372.45 and 46,930.12 is: 70,449.71
Step by Step Solution
- Step 1: Write the proportion equation
80,186.19 : 120,372.45 = 46,930.12 : x - Step 2: Convert to fraction form
80,186.19/120,372.45 = 46,930.12/x - Step 3: Cross multiply
80,186.19x = 120,372.45 × 46,930.12 - Step 4: Simplify right side
80,186.19x = 5,649,093,523.19 - Step 5: Solve for x
x = 5,649,093,523.19/80,186.19 - Step 6: Final answer
x = 70,449.71
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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.