Finding the Fourth Proportional to 125,979.75, 188,968.48 and 51,082.09
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Solution
The fourth proportional to 125,979.75, 188,968.48 and 51,082.09 is: 76,622.67
Step by Step Solution
- Step 1: Write the proportion equation
125,979.75 : 188,968.48 = 51,082.09 : x - Step 2: Convert to fraction form
125,979.75/188,968.48 = 51,082.09/x - Step 3: Cross multiply
125,979.75x = 188,968.48 × 51,082.09 - Step 4: Simplify right side
125,979.75x = 9,652,904,302.40 - Step 5: Solve for x
x = 9,652,904,302.40/125,979.75 - Step 6: Final answer
x = 76,622.67
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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.