Finding the Fourth Proportional to 135,213.76, 202,825.70 and 40,445.18
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Solution
The fourth proportional to 135,213.76, 202,825.70 and 40,445.18 is: 60,669.28
Step by Step Solution
- Step 1: Write the proportion equation
135,213.76 : 202,825.70 = 40,445.18 : x - Step 2: Convert to fraction form
135,213.76/202,825.70 = 40,445.18/x - Step 3: Cross multiply
135,213.76x = 202,825.70 × 40,445.18 - Step 4: Simplify right side
135,213.76x = 8,203,321,945.13 - Step 5: Solve for x
x = 8,203,321,945.13/135,213.76 - Step 6: Final answer
x = 60,669.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.