Finding the Fourth Proportional to 146,210.75, 201,771.45 and 79,142.75
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Solution
The fourth proportional to 146,210.75, 201,771.45 and 79,142.75 is: 109,217.33
Step by Step Solution
- Step 1: Write the proportion equation
146,210.75 : 201,771.45 = 79,142.75 : x - Step 2: Convert to fraction form
146,210.75/201,771.45 = 79,142.75/x - Step 3: Cross multiply
146,210.75x = 201,771.45 × 79,142.75 - Step 4: Simplify right side
146,210.75x = 15,968,747,424.49 - Step 5: Solve for x
x = 15,968,747,424.49/146,210.75 - Step 6: Final answer
x = 109,217.33
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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.