Finding the Fourth Proportional to 115,375.26, 159,232.36 and 66,966.78
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Solution
The fourth proportional to 115,375.26, 159,232.36 and 66,966.78 is: 92,422.56
Step by Step Solution
- Step 1: Write the proportion equation
115,375.26 : 159,232.36 = 66,966.78 : x - Step 2: Convert to fraction form
115,375.26/159,232.36 = 66,966.78/x - Step 3: Cross multiply
115,375.26x = 159,232.36 × 66,966.78 - Step 4: Simplify right side
115,375.26x = 10,663,277,444.40 - Step 5: Solve for x
x = 10,663,277,444.40/115,375.26 - Step 6: Final answer
x = 92,422.56
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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.