Finding the Fourth Proportional to 149,429.68, 206,203.59 and 82,361.68
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Solution
The fourth proportional to 149,429.68, 206,203.59 and 82,361.68 is: 113,653.95
Step by Step Solution
- Step 1: Write the proportion equation
149,429.68 : 206,203.59 = 82,361.68 : x - Step 2: Convert to fraction form
149,429.68/206,203.59 = 82,361.68/x - Step 3: Cross multiply
149,429.68x = 206,203.59 × 82,361.68 - Step 4: Simplify right side
149,429.68x = 16,983,273,578.92 - Step 5: Solve for x
x = 16,983,273,578.92/149,429.68 - Step 6: Final answer
x = 113,653.95
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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.