Finding the Fourth Proportional to 128,407.42, 192,624.09 and 44,174.44
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Solution
The fourth proportional to 128,407.42, 192,624.09 and 44,174.44 is: 66,266.12
Step by Step Solution
- Step 1: Write the proportion equation
128,407.42 : 192,624.09 = 44,174.44 : x - Step 2: Convert to fraction form
128,407.42/192,624.09 = 44,174.44/x - Step 3: Cross multiply
128,407.42x = 192,624.09 × 44,174.44 - Step 4: Simplify right side
128,407.42x = 8,509,061,306.26 - Step 5: Solve for x
x = 8,509,061,306.26/128,407.42 - Step 6: Final answer
x = 66,266.12
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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.