Finding the Fourth Proportional to 144,343.62, 199,194.93 and 80,680.05
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Solution
The fourth proportional to 144,343.62, 199,194.93 and 80,680.05 is: 111,338.88
Step by Step Solution
- Step 1: Write the proportion equation
144,343.62 : 199,194.93 = 80,680.05 : x - Step 2: Convert to fraction form
144,343.62/199,194.93 = 80,680.05/x - Step 3: Cross multiply
144,343.62x = 199,194.93 × 80,680.05 - Step 4: Simplify right side
144,343.62x = 16,071,056,912.15 - Step 5: Solve for x
x = 16,071,056,912.15/144,343.62 - Step 6: Final answer
x = 111,338.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.