Finding the Fourth Proportional to 139,524.19, 209,286.28 and 41,028.19
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Solution
The fourth proportional to 139,524.19, 209,286.28 and 41,028.19 is: 61,542.28
Step by Step Solution
- Step 1: Write the proportion equation
139,524.19 : 209,286.28 = 41,028.19 : x - Step 2: Convert to fraction form
139,524.19/209,286.28 = 41,028.19/x - Step 3: Cross multiply
139,524.19x = 209,286.28 × 41,028.19 - Step 4: Simplify right side
139,524.19x = 8,586,636,788.30 - Step 5: Solve for x
x = 8,586,636,788.30/139,524.19 - Step 6: Final answer
x = 61,542.28
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1.5x scale
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.