Finding the Fourth Proportional to 128,467.14, 192,704.94 and 44,226.42
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Solution
The fourth proportional to 128,467.14, 192,704.94 and 44,226.42 is: 66,341.09
Step by Step Solution
- Step 1: Write the proportion equation
128,467.14 : 192,704.94 = 44,226.42 : x - Step 2: Convert to fraction form
128,467.14/192,704.94 = 44,226.42/x - Step 3: Cross multiply
128,467.14x = 192,704.94 × 44,226.42 - Step 4: Simplify right side
128,467.14x = 8,522,649,612.51 - Step 5: Solve for x
x = 8,522,649,612.51/128,467.14 - Step 6: Final answer
x = 66,341.09
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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.