Finding the Fourth Proportional to 145,230.94, 217,883.37 and 85,310.09
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Solution
The fourth proportional to 145,230.94, 217,883.37 and 85,310.09 is: 127,986.84
Step by Step Solution
- Step 1: Write the proportion equation
145,230.94 : 217,883.37 = 85,310.09 : x - Step 2: Convert to fraction form
145,230.94/217,883.37 = 85,310.09/x - Step 3: Cross multiply
145,230.94x = 217,883.37 × 85,310.09 - Step 4: Simplify right side
145,230.94x = 18,587,649,631.85 - Step 5: Solve for x
x = 18,587,649,631.85/145,230.94 - Step 6: Final answer
x = 127,986.84
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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.