Finding the Fourth Proportional to 80,197.86, 120,171.99 and 30,250.62
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Solution
The fourth proportional to 80,197.86, 120,171.99 and 30,250.62 is: 45,328.86
Step by Step Solution
- Step 1: Write the proportion equation
80,197.86 : 120,171.99 = 30,250.62 : x - Step 2: Convert to fraction form
80,197.86/120,171.99 = 30,250.62/x - Step 3: Cross multiply
80,197.86x = 120,171.99 × 30,250.62 - Step 4: Simplify right side
80,197.86x = 3,635,277,204.13 - Step 5: Solve for x
x = 3,635,277,204.13/80,197.86 - Step 6: Final answer
x = 45,328.86
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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.