Finding the Fourth Proportional to 128,524.26, 192,795.40 and 39,766.08
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Solution
The fourth proportional to 128,524.26, 192,795.40 and 39,766.08 is: 59,651.91
Step by Step Solution
- Step 1: Write the proportion equation
128,524.26 : 192,795.40 = 39,766.08 : x - Step 2: Convert to fraction form
128,524.26/192,795.40 = 39,766.08/x - Step 3: Cross multiply
128,524.26x = 192,795.40 × 39,766.08 - Step 4: Simplify right side
128,524.26x = 7,666,717,300.03 - Step 5: Solve for x
x = 7,666,717,300.03/128,524.26 - Step 6: Final answer
x = 59,651.91
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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.