Finding the Fourth Proportional to 131,906.07, 182,025.09 and 77,450.99
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Solution
The fourth proportional to 131,906.07, 182,025.09 and 77,450.99 is: 106,879.26
Step by Step Solution
- Step 1: Write the proportion equation
131,906.07 : 182,025.09 = 77,450.99 : x - Step 2: Convert to fraction form
131,906.07/182,025.09 = 77,450.99/x - Step 3: Cross multiply
131,906.07x = 182,025.09 × 77,450.99 - Step 4: Simplify right side
131,906.07x = 14,098,022,515.21 - Step 5: Solve for x
x = 14,098,022,515.21/131,906.07 - Step 6: Final answer
x = 106,879.26
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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.