Finding the Fourth Proportional to 146,212.75, 201,774.21 and 79,144.75
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Solution
The fourth proportional to 146,212.75, 201,774.21 and 79,144.75 is: 109,220.09
Step by Step Solution
- Step 1: Write the proportion equation
146,212.75 : 201,774.21 = 79,144.75 : x - Step 2: Convert to fraction form
146,212.75/201,774.21 = 79,144.75/x - Step 3: Cross multiply
146,212.75x = 201,774.21 × 79,144.75 - Step 4: Simplify right side
146,212.75x = 15,969,369,406.90 - Step 5: Solve for x
x = 15,969,369,406.90/146,212.75 - Step 6: Final answer
x = 109,220.09
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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.