Finding the Fourth Proportional to 146,286.75, 201,875.72 and 79,218.75
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Solution
The fourth proportional to 146,286.75, 201,875.72 and 79,218.75 is: 109,321.88
Step by Step Solution
- Step 1: Write the proportion equation
146,286.75 : 201,875.72 = 79,218.75 : x - Step 2: Convert to fraction form
146,286.75/201,875.72 = 79,218.75/x - Step 3: Cross multiply
146,286.75x = 201,875.72 × 79,218.75 - Step 4: Simplify right side
146,286.75x = 15,992,342,193.75 - Step 5: Solve for x
x = 15,992,342,193.75/146,286.75 - Step 6: Final answer
x = 109,321.88
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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.