Finding the Fourth Proportional to 125,516.25, 173,213.64 and 68,928.84
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Solution
The fourth proportional to 125,516.25, 173,213.64 and 68,928.84 is: 95,122.47
Step by Step Solution
- Step 1: Write the proportion equation
125,516.25 : 173,213.64 = 68,928.84 : x - Step 2: Convert to fraction form
125,516.25/173,213.64 = 68,928.84/x - Step 3: Cross multiply
125,516.25x = 173,213.64 × 68,928.84 - Step 4: Simplify right side
125,516.25x = 11,939,415,277.38 - Step 5: Solve for x
x = 11,939,415,277.38/125,516.25 - Step 6: Final answer
x = 95,122.47
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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.