Finding the Fourth Proportional to 115,170.20, 158,939.78 and 64,182.99
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Solution
The fourth proportional to 115,170.20, 158,939.78 and 64,182.99 is: 88,575.26
Step by Step Solution
- Step 1: Write the proportion equation
115,170.20 : 158,939.78 = 64,182.99 : x - Step 2: Convert to fraction form
115,170.20/158,939.78 = 64,182.99/x - Step 3: Cross multiply
115,170.20x = 158,939.78 × 64,182.99 - Step 4: Simplify right side
115,170.20x = 10,201,230,310.34 - Step 5: Solve for x
x = 10,201,230,310.34/115,170.20 - Step 6: Final answer
x = 88,575.26
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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.