Finding the Fourth Proportional to 129,183.12, 192,644.16 and 128,002.08
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Solution
The fourth proportional to 129,183.12, 192,644.16 and 128,002.08 is: 190,882.94
Step by Step Solution
- Step 1: Write the proportion equation
129,183.12 : 192,644.16 = 128,002.08 : x - Step 2: Convert to fraction form
129,183.12/192,644.16 = 128,002.08/x - Step 3: Cross multiply
129,183.12x = 192,644.16 × 128,002.08 - Step 4: Simplify right side
129,183.12x = 24,658,853,179.85 - Step 5: Solve for x
x = 24,658,853,179.85/129,183.12 - Step 6: Final answer
x = 190,882.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.