Finding the Fourth Proportional to 122,679.56, 169,299.48 and 68,961.44
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Solution
The fourth proportional to 122,679.56, 169,299.48 and 68,961.44 is: 95,167.74
Step by Step Solution
- Step 1: Write the proportion equation
122,679.56 : 169,299.48 = 68,961.44 : x - Step 2: Convert to fraction form
122,679.56/169,299.48 = 68,961.44/x - Step 3: Cross multiply
122,679.56x = 169,299.48 × 68,961.44 - Step 4: Simplify right side
122,679.56x = 11,675,135,932.05 - Step 5: Solve for x
x = 11,675,135,932.05/122,679.56 - Step 6: Final answer
x = 95,167.74
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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.