Finding the Fourth Proportional to 135,621.26, 203,431.90 and 52,515.26
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Solution
The fourth proportional to 135,621.26, 203,431.90 and 52,515.26 is: 78,772.89
Step by Step Solution
- Step 1: Write the proportion equation
135,621.26 : 203,431.90 = 52,515.26 : x - Step 2: Convert to fraction form
135,621.26/203,431.90 = 52,515.26/x - Step 3: Cross multiply
135,621.26x = 203,431.90 × 52,515.26 - Step 4: Simplify right side
135,621.26x = 10,683,279,120.79 - Step 5: Solve for x
x = 10,683,279,120.79/135,621.26 - Step 6: Final answer
x = 78,772.89
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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.