Finding the Fourth Proportional to 146,456.16, 202,213.60 and 115,783.44
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Solution
The fourth proportional to 146,456.16, 202,213.60 and 115,783.44 is: 159,863.44
Step by Step Solution
- Step 1: Write the proportion equation
146,456.16 : 202,213.60 = 115,783.44 : x - Step 2: Convert to fraction form
146,456.16/202,213.60 = 115,783.44/x - Step 3: Cross multiply
146,456.16x = 202,213.60 × 115,783.44 - Step 4: Simplify right side
146,456.16x = 23,412,986,222.78 - Step 5: Solve for x
x = 23,412,986,222.78/146,456.16 - Step 6: Final answer
x = 159,863.44
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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.