Finding the Fourth Proportional to 149,722.75, 206,617.53 and 82,654.75
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Solution
The fourth proportional to 149,722.75, 206,617.53 and 82,654.75 is: 114,063.63
Step by Step Solution
- Step 1: Write the proportion equation
149,722.75 : 206,617.53 = 82,654.75 : x - Step 2: Convert to fraction form
149,722.75/206,617.53 = 82,654.75/x - Step 3: Cross multiply
149,722.75x = 206,617.53 × 82,654.75 - Step 4: Simplify right side
149,722.75x = 17,077,920,287.77 - Step 5: Solve for x
x = 17,077,920,287.77/149,722.75 - Step 6: Final answer
x = 114,063.63
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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.