Finding the Fourth Proportional to 123,486.62, 185,230.80 and 34,749.09
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Solution
The fourth proportional to 123,486.62, 185,230.80 and 34,749.09 is: 52,123.88
Step by Step Solution
- Step 1: Write the proportion equation
123,486.62 : 185,230.80 = 34,749.09 : x - Step 2: Convert to fraction form
123,486.62/185,230.80 = 34,749.09/x - Step 3: Cross multiply
123,486.62x = 185,230.80 × 34,749.09 - Step 4: Simplify right side
123,486.62x = 6,436,601,739.97 - Step 5: Solve for x
x = 6,436,601,739.97/123,486.62 - Step 6: Final answer
x = 52,123.88
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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.