Finding the Fourth Proportional to 146,285.75, 201,874.34 and 79,217.75
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Solution
The fourth proportional to 146,285.75, 201,874.34 and 79,217.75 is: 109,320.50
Step by Step Solution
- Step 1: Write the proportion equation
146,285.75 : 201,874.34 = 79,217.75 : x - Step 2: Convert to fraction form
146,285.75/201,874.34 = 79,217.75/x - Step 3: Cross multiply
146,285.75x = 201,874.34 × 79,217.75 - Step 4: Simplify right side
146,285.75x = 15,992,030,601.45 - Step 5: Solve for x
x = 15,992,030,601.45/146,285.75 - Step 6: Final answer
x = 109,320.50
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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.