Finding the Fourth Proportional to 146,213.31, 201,775.01 and 79,145.31
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Solution
The fourth proportional to 146,213.31, 201,775.01 and 79,145.31 is: 109,220.88
Step by Step Solution
- Step 1: Write the proportion equation
146,213.31 : 201,775.01 = 79,145.31 : x - Step 2: Convert to fraction form
146,213.31/201,775.01 = 79,145.31/x - Step 3: Cross multiply
146,213.31x = 201,775.01 × 79,145.31 - Step 4: Simplify right side
146,213.31x = 15,969,545,716.70 - Step 5: Solve for x
x = 15,969,545,716.70/146,213.31 - Step 6: Final answer
x = 109,220.88
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1.5x scale
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.