Finding the Fourth Proportional to 113,944.26, 170,960.16 and 80,242.62
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Solution
The fourth proportional to 113,944.26, 170,960.16 and 80,242.62 is: 120,394.75
Step by Step Solution
- Step 1: Write the proportion equation
113,944.26 : 170,960.16 = 80,242.62 : x - Step 2: Convert to fraction form
113,944.26/170,960.16 = 80,242.62/x - Step 3: Cross multiply
113,944.26x = 170,960.16 × 80,242.62 - Step 4: Simplify right side
113,944.26x = 13,718,291,154.02 - Step 5: Solve for x
x = 13,718,291,154.02/113,944.26 - Step 6: Final answer
x = 120,394.75
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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.