Finding the Fourth Proportional to 129,262.25, 193,891.93 and 50,431.84
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Solution
The fourth proportional to 129,262.25, 193,891.93 and 50,431.84 is: 75,647.19
Step by Step Solution
- Step 1: Write the proportion equation
129,262.25 : 193,891.93 = 50,431.84 : x - Step 2: Convert to fraction form
129,262.25/193,891.93 = 50,431.84/x - Step 3: Cross multiply
129,262.25x = 193,891.93 × 50,431.84 - Step 4: Simplify right side
129,262.25x = 9,778,326,180.24 - Step 5: Solve for x
x = 9,778,326,180.24/129,262.25 - Step 6: Final answer
x = 75,647.19
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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.