Finding the Fourth Proportional to 146,022.75, 201,512.00 and 78,954.75
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Solution
The fourth proportional to 146,022.75, 201,512.00 and 78,954.75 is: 108,957.88
Step by Step Solution
- Step 1: Write the proportion equation
146,022.75 : 201,512.00 = 78,954.75 : x - Step 2: Convert to fraction form
146,022.75/201,512.00 = 78,954.75/x - Step 3: Cross multiply
146,022.75x = 201,512.00 × 78,954.75 - Step 4: Simplify right side
146,022.75x = 15,910,329,779.39 - Step 5: Solve for x
x = 15,910,329,779.39/146,022.75 - Step 6: Final answer
x = 108,957.88
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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.