Finding the Fourth Proportional to 136,721.26, 204,684.73 and 79,621.07
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Solution
The fourth proportional to 136,721.26, 204,684.73 and 79,621.07 is: 119,200.31
Step by Step Solution
- Step 1: Write the proportion equation
136,721.26 : 204,684.73 = 79,621.07 : x - Step 2: Convert to fraction form
136,721.26/204,684.73 = 79,621.07/x - Step 3: Cross multiply
136,721.26x = 204,684.73 × 79,621.07 - Step 4: Simplify right side
136,721.26x = 16,297,217,215.26 - Step 5: Solve for x
x = 16,297,217,215.26/136,721.26 - Step 6: Final answer
x = 119,200.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.