Finding the Fourth Proportional to 120,622.94, 166,350.68 and 75,305.09
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Solution
The fourth proportional to 120,622.94, 166,350.68 and 75,305.09 is: 103,852.99
Step by Step Solution
- Step 1: Write the proportion equation
120,622.94 : 166,350.68 = 75,305.09 : x - Step 2: Convert to fraction form
120,622.94/166,350.68 = 75,305.09/x - Step 3: Cross multiply
120,622.94x = 166,350.68 × 75,305.09 - Step 4: Simplify right side
120,622.94x = 12,527,053,250.71 - Step 5: Solve for x
x = 12,527,053,250.71/120,622.94 - Step 6: Final answer
x = 103,852.99
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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.