Finding the Fourth Proportional to 131,121.57, 180,944.24 and 73,767.09
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Solution
The fourth proportional to 131,121.57, 180,944.24 and 73,767.09 is: 101,796.60
Step by Step Solution
- Step 1: Write the proportion equation
131,121.57 : 180,944.24 = 73,767.09 : x - Step 2: Convert to fraction form
131,121.57/180,944.24 = 73,767.09/x - Step 3: Cross multiply
131,121.57x = 180,944.24 × 73,767.09 - Step 4: Simplify right side
131,121.57x = 13,347,729,668.23 - Step 5: Solve for x
x = 13,347,729,668.23/131,121.57 - Step 6: Final answer
x = 101,796.60
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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.