Finding the Fourth Proportional to 120,361.05, 180,275.22 and 82,319.99
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Solution
The fourth proportional to 120,361.05, 180,275.22 and 82,319.99 is: 123,297.81
Step by Step Solution
- Step 1: Write the proportion equation
120,361.05 : 180,275.22 = 82,319.99 : x - Step 2: Convert to fraction form
120,361.05/180,275.22 = 82,319.99/x - Step 3: Cross multiply
120,361.05x = 180,275.22 × 82,319.99 - Step 4: Simplify right side
120,361.05x = 14,840,253,406.27 - Step 5: Solve for x
x = 14,840,253,406.27/120,361.05 - Step 6: Final answer
x = 123,297.81
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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.