Finding the Fourth Proportional to 120,531.99, 166,322.94 and 66,812.43
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Solution
The fourth proportional to 120,531.99, 166,322.94 and 66,812.43 is: 92,194.94
Step by Step Solution
- Step 1: Write the proportion equation
120,531.99 : 166,322.94 = 66,812.43 : x - Step 2: Convert to fraction form
120,531.99/166,322.94 = 66,812.43/x - Step 3: Cross multiply
120,531.99x = 166,322.94 × 66,812.43 - Step 4: Simplify right side
120,531.99x = 11,112,439,786.14 - Step 5: Solve for x
x = 11,112,439,786.14/120,531.99 - Step 6: Final answer
x = 92,194.94
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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.