Finding the Fourth Proportional to 121,110.07, 167,125.69 and 92,449.78
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Solution
The fourth proportional to 121,110.07, 167,125.69 and 92,449.78 is: 127,575.96
Step by Step Solution
- Step 1: Write the proportion equation
121,110.07 : 167,125.69 = 92,449.78 : x - Step 2: Convert to fraction form
121,110.07/167,125.69 = 92,449.78/x - Step 3: Cross multiply
121,110.07x = 167,125.69 × 92,449.78 - Step 4: Simplify right side
121,110.07x = 15,450,733,272.85 - Step 5: Solve for x
x = 15,450,733,272.85/121,110.07 - Step 6: Final answer
x = 127,575.96
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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.