Finding the Fourth Proportional to 129,268.07, 193,902.16 and 40,528.49
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Solution
The fourth proportional to 129,268.07, 193,902.16 and 40,528.49 is: 60,792.76
Step by Step Solution
- Step 1: Write the proportion equation
129,268.07 : 193,902.16 = 40,528.49 : x - Step 2: Convert to fraction form
129,268.07/193,902.16 = 40,528.49/x - Step 3: Cross multiply
129,268.07x = 193,902.16 × 40,528.49 - Step 4: Simplify right side
129,268.07x = 7,858,562,135.97 - Step 5: Solve for x
x = 7,858,562,135.97/129,268.07 - Step 6: Final answer
x = 60,792.76
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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.