Finding the Fourth Proportional to 128,442.26, 192,613.47 and 44,186.42
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Solution
The fourth proportional to 128,442.26, 192,613.47 and 44,186.42 is: 66,262.46
Step by Step Solution
- Step 1: Write the proportion equation
128,442.26 : 192,613.47 = 44,186.42 : x - Step 2: Convert to fraction form
128,442.26/192,613.47 = 44,186.42/x - Step 3: Cross multiply
128,442.26x = 192,613.47 × 44,186.42 - Step 4: Simplify right side
128,442.26x = 8,510,899,683.08 - Step 5: Solve for x
x = 8,510,899,683.08/128,442.26 - Step 6: Final answer
x = 66,262.46
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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.