Finding the Fourth Proportional to 129,046.13, 193,532.24 and 54,183.09
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Solution
The fourth proportional to 129,046.13, 193,532.24 and 54,183.09 is: 81,259.12
Step by Step Solution
- Step 1: Write the proportion equation
129,046.13 : 193,532.24 = 54,183.09 : x - Step 2: Convert to fraction form
129,046.13/193,532.24 = 54,183.09/x - Step 3: Cross multiply
129,046.13x = 193,532.24 × 54,183.09 - Step 4: Simplify right side
129,046.13x = 10,486,174,506.91 - Step 5: Solve for x
x = 10,486,174,506.91/129,046.13 - Step 6: Final answer
x = 81,259.12
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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.