Finding the Fourth Proportional to 136,959.66, 205,486.19 and 73,786.26
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Solution
The fourth proportional to 136,959.66, 205,486.19 and 73,786.26 is: 110,704.55
Step by Step Solution
- Step 1: Write the proportion equation
136,959.66 : 205,486.19 = 73,786.26 : x - Step 2: Convert to fraction form
136,959.66/205,486.19 = 73,786.26/x - Step 3: Cross multiply
136,959.66x = 205,486.19 × 73,786.26 - Step 4: Simplify right side
136,959.66x = 15,162,057,441.75 - Step 5: Solve for x
x = 15,162,057,441.75/136,959.66 - Step 6: Final answer
x = 110,704.55
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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.