Finding the Fourth Proportional to 125,183.20, 187,755.16 and 40,942.68
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Solution
The fourth proportional to 125,183.20, 187,755.16 and 40,942.68 is: 61,407.60
Step by Step Solution
- Step 1: Write the proportion equation
125,183.20 : 187,755.16 = 40,942.68 : x - Step 2: Convert to fraction form
125,183.20/187,755.16 = 40,942.68/x - Step 3: Cross multiply
125,183.20x = 187,755.16 × 40,942.68 - Step 4: Simplify right side
125,183.20x = 7,687,199,434.23 - Step 5: Solve for x
x = 7,687,199,434.23/125,183.20 - Step 6: Final answer
x = 61,407.60
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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.