Finding the Fourth Proportional to 115,205.75, 158,983.94 and 62,213.75
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Solution
The fourth proportional to 115,205.75, 158,983.94 and 62,213.75 is: 85,854.98
Step by Step Solution
- Step 1: Write the proportion equation
115,205.75 : 158,983.94 = 62,213.75 : x - Step 2: Convert to fraction form
115,205.75/158,983.94 = 62,213.75/x - Step 3: Cross multiply
115,205.75x = 158,983.94 × 62,213.75 - Step 4: Simplify right side
115,205.75x = 9,890,986,786.11 - Step 5: Solve for x
x = 9,890,986,786.11/115,205.75 - Step 6: Final answer
x = 85,854.98
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1.5x scale
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.