Finding the Fourth Proportional to 122,453.82, 168,986.19 and 68,738.94
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Solution
The fourth proportional to 122,453.82, 168,986.19 and 68,738.94 is: 94,859.69
Step by Step Solution
- Step 1: Write the proportion equation
122,453.82 : 168,986.19 = 68,738.94 : x - Step 2: Convert to fraction form
122,453.82/168,986.19 = 68,738.94/x - Step 3: Cross multiply
122,453.82x = 168,986.19 × 68,738.94 - Step 4: Simplify right side
122,453.82x = 11,615,931,575.24 - Step 5: Solve for x
x = 11,615,931,575.24/122,453.82 - Step 6: Final answer
x = 94,859.69
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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.