Finding the Fourth Proportional to 120,286.91, 180,429.56 and 94,013.75
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Solution
The fourth proportional to 120,286.91, 180,429.56 and 94,013.75 is: 141,019.99
Step by Step Solution
- Step 1: Write the proportion equation
120,286.91 : 180,429.56 = 94,013.75 : x - Step 2: Convert to fraction form
120,286.91/180,429.56 = 94,013.75/x - Step 3: Cross multiply
120,286.91x = 180,429.56 × 94,013.75 - Step 4: Simplify right side
120,286.91x = 16,962,859,076.38 - Step 5: Solve for x
x = 16,962,859,076.38/120,286.91 - Step 6: Final answer
x = 141,019.99
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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.