Finding the Fourth Proportional to 122,408.39, 168,919.53 and 68,694.26
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Solution
The fourth proportional to 122,408.39, 168,919.53 and 68,694.26 is: 94,795.80
Step by Step Solution
- Step 1: Write the proportion equation
122,408.39 : 168,919.53 = 68,694.26 : x - Step 2: Convert to fraction form
122,408.39/168,919.53 = 68,694.26/x - Step 3: Cross multiply
122,408.39x = 168,919.53 × 68,694.26 - Step 4: Simplify right side
122,408.39x = 11,603,801,268.30 - Step 5: Solve for x
x = 11,603,801,268.30/122,408.39 - Step 6: Final answer
x = 94,795.80
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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.