Finding the Fourth Proportional to 146,192.70, 201,743.74 and 81,662.84
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Solution
The fourth proportional to 146,192.70, 201,743.74 and 81,662.84 is: 112,693.50
Step by Step Solution
- Step 1: Write the proportion equation
146,192.70 : 201,743.74 = 81,662.84 : x - Step 2: Convert to fraction form
146,192.70/201,743.74 = 81,662.84/x - Step 3: Cross multiply
146,192.70x = 201,743.74 × 81,662.84 - Step 4: Simplify right side
146,192.70x = 16,474,966,760.62 - Step 5: Solve for x
x = 16,474,966,760.62/146,192.70 - Step 6: Final answer
x = 112,693.50
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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.