Finding the Fourth Proportional to 100,183.69, 138,253.53 and 54,864.49
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Solution
The fourth proportional to 100,183.69, 138,253.53 and 54,864.49 is: 75,713.02
Step by Step Solution
- Step 1: Write the proportion equation
100,183.69 : 138,253.53 = 54,864.49 : x - Step 2: Convert to fraction form
100,183.69/138,253.53 = 54,864.49/x - Step 3: Cross multiply
100,183.69x = 138,253.53 × 54,864.49 - Step 4: Simplify right side
100,183.69x = 7,585,209,484.10 - Step 5: Solve for x
x = 7,585,209,484.10/100,183.69 - Step 6: Final answer
x = 75,713.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.