Finding the Fourth Proportional to 145,768.38, 201,161.07 and 82,107.18
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Solution
The fourth proportional to 145,768.38, 201,161.07 and 82,107.18 is: 113,308.31
Step by Step Solution
- Step 1: Write the proportion equation
145,768.38 : 201,161.07 = 82,107.18 : x - Step 2: Convert to fraction form
145,768.38/201,161.07 = 82,107.18/x - Step 3: Cross multiply
145,768.38x = 201,161.07 × 82,107.18 - Step 4: Simplify right side
145,768.38x = 16,516,768,183.48 - Step 5: Solve for x
x = 16,516,768,183.48/145,768.38 - Step 6: Final answer
x = 113,308.31
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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.