Finding the Fourth Proportional to 155,755.26, 214,942.24 and 84,135.30
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Solution
The fourth proportional to 155,755.26, 214,942.24 and 84,135.30 is: 116,106.70
Step by Step Solution
- Step 1: Write the proportion equation
155,755.26 : 214,942.24 = 84,135.30 : x - Step 2: Convert to fraction form
155,755.26/214,942.24 = 84,135.30/x - Step 3: Cross multiply
155,755.26x = 214,942.24 × 84,135.30 - Step 4: Simplify right side
155,755.26x = 18,084,229,845.07 - Step 5: Solve for x
x = 18,084,229,845.07/155,755.26 - Step 6: Final answer
x = 116,106.70
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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.