Finding the Fourth Proportional to 102,481.99, 153,745.73 and 31,414.48
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Solution
The fourth proportional to 102,481.99, 153,745.73 and 31,414.48 is: 47,128.69
Step by Step Solution
- Step 1: Write the proportion equation
102,481.99 : 153,745.73 = 31,414.48 : x - Step 2: Convert to fraction form
102,481.99/153,745.73 = 31,414.48/x - Step 3: Cross multiply
102,481.99x = 153,745.73 × 31,414.48 - Step 4: Simplify right side
102,481.99x = 4,829,842,160.17 - Step 5: Solve for x
x = 4,829,842,160.17/102,481.99 - Step 6: Final answer
x = 47,128.69
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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.