Finding the Fourth Proportional to 136,759.99, 205,213.65 and 66,639.30
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Solution
The fourth proportional to 136,759.99, 205,213.65 and 66,639.30 is: 99,994.84
Step by Step Solution
- Step 1: Write the proportion equation
136,759.99 : 205,213.65 = 66,639.30 : x - Step 2: Convert to fraction form
136,759.99/205,213.65 = 66,639.30/x - Step 3: Cross multiply
136,759.99x = 205,213.65 × 66,639.30 - Step 4: Simplify right side
136,759.99x = 13,675,293,653.25 - Step 5: Solve for x
x = 13,675,293,653.25/136,759.99 - Step 6: Final answer
x = 99,994.84
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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.