Finding the Fourth Proportional to 128,173.97, 192,260.97 and 83,838.02
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Solution
The fourth proportional to 128,173.97, 192,260.97 and 83,838.02 is: 125,757.03
Step by Step Solution
- Step 1: Write the proportion equation
128,173.97 : 192,260.97 = 83,838.02 : x - Step 2: Convert to fraction form
128,173.97/192,260.97 = 83,838.02/x - Step 3: Cross multiply
128,173.97x = 192,260.97 × 83,838.02 - Step 4: Simplify right side
128,173.97x = 16,118,778,086.77 - Step 5: Solve for x
x = 16,118,778,086.77/128,173.97 - Step 6: Final answer
x = 125,757.03
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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.