Finding the Fourth Proportional to 135,623.75, 203,435.64 and 52,517.75
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Solution
The fourth proportional to 135,623.75, 203,435.64 and 52,517.75 is: 78,776.63
Step by Step Solution
- Step 1: Write the proportion equation
135,623.75 : 203,435.64 = 52,517.75 : x - Step 2: Convert to fraction form
135,623.75/203,435.64 = 52,517.75/x - Step 3: Cross multiply
135,623.75x = 203,435.64 × 52,517.75 - Step 4: Simplify right side
135,623.75x = 10,683,982,082.61 - Step 5: Solve for x
x = 10,683,982,082.61/135,623.75 - Step 6: Final answer
x = 78,776.63
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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.