Finding the Fourth Proportional to 151,378.75, 208,902.68 and 84,310.75
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Solution
The fourth proportional to 151,378.75, 208,902.68 and 84,310.75 is: 116,348.84
Step by Step Solution
- Step 1: Write the proportion equation
151,378.75 : 208,902.68 = 84,310.75 : x - Step 2: Convert to fraction form
151,378.75/208,902.68 = 84,310.75/x - Step 3: Cross multiply
151,378.75x = 208,902.68 × 84,310.75 - Step 4: Simplify right side
151,378.75x = 17,612,741,627.81 - Step 5: Solve for x
x = 17,612,741,627.81/151,378.75 - Step 6: Final answer
x = 116,348.84
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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.