Finding the Fourth Proportional to 129,452.19, 194,224.86 and 45,224.75
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Solution
The fourth proportional to 129,452.19, 194,224.86 and 45,224.75 is: 67,853.39
Step by Step Solution
- Step 1: Write the proportion equation
129,452.19 : 194,224.86 = 45,224.75 : x - Step 2: Convert to fraction form
129,452.19/194,224.86 = 45,224.75/x - Step 3: Cross multiply
129,452.19x = 194,224.86 × 45,224.75 - Step 4: Simplify right side
129,452.19x = 8,783,769,766.16 - Step 5: Solve for x
x = 8,783,769,766.16/129,452.19 - Step 6: Final answer
x = 67,853.39
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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.