Finding the Fourth Proportional to 135,745.62, 187,324.35 and 82,021.14
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Solution
The fourth proportional to 135,745.62, 187,324.35 and 82,021.14 is: 113,186.39
Step by Step Solution
- Step 1: Write the proportion equation
135,745.62 : 187,324.35 = 82,021.14 : x - Step 2: Convert to fraction form
135,745.62/187,324.35 = 82,021.14/x - Step 3: Cross multiply
135,745.62x = 187,324.35 × 82,021.14 - Step 4: Simplify right side
135,745.62x = 15,364,556,736.76 - Step 5: Solve for x
x = 15,364,556,736.76/135,745.62 - Step 6: Final answer
x = 113,186.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.