Finding the Fourth Proportional to 122,443.13, 168,958.50 and 68,734.06
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Solution
The fourth proportional to 122,443.13, 168,958.50 and 68,734.06 is: 94,845.69
Step by Step Solution
- Step 1: Write the proportion equation
122,443.13 : 168,958.50 = 68,734.06 : x - Step 2: Convert to fraction form
122,443.13/168,958.50 = 68,734.06/x - Step 3: Cross multiply
122,443.13x = 168,958.50 × 68,734.06 - Step 4: Simplify right side
122,443.13x = 11,613,203,676.51 - Step 5: Solve for x
x = 11,613,203,676.51/122,443.13 - Step 6: Final answer
x = 94,845.69
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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.