Finding the Fourth Proportional to 149,791.87, 206,361.18 and 104,387.32
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Solution
The fourth proportional to 149,791.87, 206,361.18 and 104,387.32 is: 143,809.48
Step by Step Solution
- Step 1: Write the proportion equation
149,791.87 : 206,361.18 = 104,387.32 : x - Step 2: Convert to fraction form
149,791.87/206,361.18 = 104,387.32/x - Step 3: Cross multiply
149,791.87x = 206,361.18 × 104,387.32 - Step 4: Simplify right side
149,791.87x = 21,541,490,532.24 - Step 5: Solve for x
x = 21,541,490,532.24/149,791.87 - Step 6: Final answer
x = 143,809.48
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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.