Finding the Fourth Proportional to 146,220.09, 201,783.75 and 79,152.09
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Solution
The fourth proportional to 146,220.09, 201,783.75 and 79,152.09 is: 109,229.90
Step by Step Solution
- Step 1: Write the proportion equation
146,220.09 : 201,783.75 = 79,152.09 : x - Step 2: Convert to fraction form
146,220.09/201,783.75 = 79,152.09/x - Step 3: Cross multiply
146,220.09x = 201,783.75 × 79,152.09 - Step 4: Simplify right side
146,220.09x = 15,971,605,540.54 - Step 5: Solve for x
x = 15,971,605,540.54/146,220.09 - Step 6: Final answer
x = 109,229.90
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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.