Finding the Fourth Proportional to 128,105.06, 192,274.19 and 68,183.84
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Solution
The fourth proportional to 128,105.06, 192,274.19 and 68,183.84 is: 102,337.82
Step by Step Solution
- Step 1: Write the proportion equation
128,105.06 : 192,274.19 = 68,183.84 : x - Step 2: Convert to fraction form
128,105.06/192,274.19 = 68,183.84/x - Step 3: Cross multiply
128,105.06x = 192,274.19 × 68,183.84 - Step 4: Simplify right side
128,105.06x = 13,109,992,479.04 - Step 5: Solve for x
x = 13,109,992,479.04/128,105.06 - Step 6: Final answer
x = 102,337.82
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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.