Finding the Fourth Proportional to 120,713.36, 166,581.25 and 66,996.99
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Solution
The fourth proportional to 120,713.36, 166,581.25 and 66,996.99 is: 92,454.08
Step by Step Solution
- Step 1: Write the proportion equation
120,713.36 : 166,581.25 = 66,996.99 : x - Step 2: Convert to fraction form
120,713.36/166,581.25 = 66,996.99/x - Step 3: Cross multiply
120,713.36x = 166,581.25 × 66,996.99 - Step 4: Simplify right side
120,713.36x = 11,160,442,172.95 - Step 5: Solve for x
x = 11,160,442,172.95/120,713.36 - Step 6: Final answer
x = 92,454.08
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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.