Finding the Fourth Proportional to 128,546.80, 192,589.80 and 110,114.80
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Solution
The fourth proportional to 128,546.80, 192,589.80 and 110,114.80 is: 164,974.84
Step by Step Solution
- Step 1: Write the proportion equation
128,546.80 : 192,589.80 = 110,114.80 : x - Step 2: Convert to fraction form
128,546.80/192,589.80 = 110,114.80/x - Step 3: Cross multiply
128,546.80x = 192,589.80 × 110,114.80 - Step 4: Simplify right side
128,546.80x = 21,206,987,309.04 - Step 5: Solve for x
x = 21,206,987,309.04/128,546.80 - Step 6: Final answer
x = 164,974.84
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1.5x scale
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.