Finding the Fourth Proportional to 145,091.88, 217,704.80 and 66,230.28
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Solution
The fourth proportional to 145,091.88, 217,704.80 and 66,230.28 is: 99,375.99
Step by Step Solution
- Step 1: Write the proportion equation
145,091.88 : 217,704.80 = 66,230.28 : x - Step 2: Convert to fraction form
145,091.88/217,704.80 = 66,230.28/x - Step 3: Cross multiply
145,091.88x = 217,704.80 × 66,230.28 - Step 4: Simplify right side
145,091.88x = 14,418,649,861.34 - Step 5: Solve for x
x = 14,418,649,861.34/145,091.88 - Step 6: Final answer
x = 99,375.99
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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.