Finding the Fourth Proportional to 146,170.20, 201,715.44 and 79,102.20
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Solution
The fourth proportional to 146,170.20, 201,715.44 and 79,102.20 is: 109,161.34
Step by Step Solution
- Step 1: Write the proportion equation
146,170.20 : 201,715.44 = 79,102.20 : x - Step 2: Convert to fraction form
146,170.20/201,715.44 = 79,102.20/x - Step 3: Cross multiply
146,170.20x = 201,715.44 × 79,102.20 - Step 4: Simplify right side
146,170.20x = 15,956,135,077.97 - Step 5: Solve for x
x = 15,956,135,077.97/146,170.20 - Step 6: Final answer
x = 109,161.34
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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.