Finding the Fourth Proportional to 146,211.75, 201,772.83 and 79,143.75
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Solution
The fourth proportional to 146,211.75, 201,772.83 and 79,143.75 is: 109,218.71
Step by Step Solution
- Step 1: Write the proportion equation
146,211.75 : 201,772.83 = 79,143.75 : x - Step 2: Convert to fraction form
146,211.75/201,772.83 = 79,143.75/x - Step 3: Cross multiply
146,211.75x = 201,772.83 × 79,143.75 - Step 4: Simplify right side
146,211.75x = 15,969,058,414.31 - Step 5: Solve for x
x = 15,969,058,414.31/146,211.75 - Step 6: Final answer
x = 109,218.71
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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.