Finding the Fourth Proportional to 104,853.75, 144,699.84 and 57,107.07
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Solution
The fourth proportional to 104,853.75, 144,699.84 and 57,107.07 is: 78,808.66
Step by Step Solution
- Step 1: Write the proportion equation
104,853.75 : 144,699.84 = 57,107.07 : x - Step 2: Convert to fraction form
104,853.75/144,699.84 = 57,107.07/x - Step 3: Cross multiply
104,853.75x = 144,699.84 × 57,107.07 - Step 4: Simplify right side
104,853.75x = 8,263,383,891.87 - Step 5: Solve for x
x = 8,263,383,891.87/104,853.75 - Step 6: Final answer
x = 78,808.66
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1.5x scale
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.