Finding the Fourth Proportional to 116,490.26, 160,755.72 and 66,189.26
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Solution
The fourth proportional to 116,490.26, 160,755.72 and 66,189.26 is: 91,340.70
Step by Step Solution
- Step 1: Write the proportion equation
116,490.26 : 160,755.72 = 66,189.26 : x - Step 2: Convert to fraction form
116,490.26/160,755.72 = 66,189.26/x - Step 3: Cross multiply
116,490.26x = 160,755.72 × 66,189.26 - Step 4: Simplify right side
116,490.26x = 10,640,302,147.57 - Step 5: Solve for x
x = 10,640,302,147.57/116,490.26 - Step 6: Final answer
x = 91,340.70
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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.