Finding the Fourth Proportional to 136,424.10, 204,634.70 and 53,317.38
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Solution
The fourth proportional to 136,424.10, 204,634.70 and 53,317.38 is: 79,975.50
Step by Step Solution
- Step 1: Write the proportion equation
136,424.10 : 204,634.70 = 53,317.38 : x - Step 2: Convert to fraction form
136,424.10/204,634.70 = 53,317.38/x - Step 3: Cross multiply
136,424.10x = 204,634.70 × 53,317.38 - Step 4: Simplify right side
136,424.10x = 10,910,586,061.09 - Step 5: Solve for x
x = 10,910,586,061.09/136,424.10 - Step 6: Final answer
x = 79,975.50
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1.5x scale
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.