Finding the Fourth Proportional to 105,661.44, 158,579.68 and 53,086.08
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Solution
The fourth proportional to 105,661.44, 158,579.68 and 53,086.08 is: 79,673.09
Step by Step Solution
- Step 1: Write the proportion equation
105,661.44 : 158,579.68 = 53,086.08 : x - Step 2: Convert to fraction form
105,661.44/158,579.68 = 53,086.08/x - Step 3: Cross multiply
105,661.44x = 158,579.68 × 53,086.08 - Step 4: Simplify right side
105,661.44x = 8,418,373,578.85 - Step 5: Solve for x
x = 8,418,373,578.85/105,661.44 - Step 6: Final answer
x = 79,673.09
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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.