Finding the Fourth Proportional to 125,338.11, 172,974.82 and 68,749.48
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Solution
The fourth proportional to 125,338.11, 172,974.82 and 68,749.48 is: 94,878.80
Step by Step Solution
- Step 1: Write the proportion equation
125,338.11 : 172,974.82 = 68,749.48 : x - Step 2: Convert to fraction form
125,338.11/172,974.82 = 68,749.48/x - Step 3: Cross multiply
125,338.11x = 172,974.82 × 68,749.48 - Step 4: Simplify right side
125,338.11x = 11,891,928,928.09 - Step 5: Solve for x
x = 11,891,928,928.09/125,338.11 - Step 6: Final answer
x = 94,878.80
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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.