Finding the Fourth Proportional to 125,118.38, 172,664.26 and 68,529.62
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Solution
The fourth proportional to 125,118.38, 172,664.26 and 68,529.62 is: 94,571.37
Step by Step Solution
- Step 1: Write the proportion equation
125,118.38 : 172,664.26 = 68,529.62 : x - Step 2: Convert to fraction form
125,118.38/172,664.26 = 68,529.62/x - Step 3: Cross multiply
125,118.38x = 172,664.26 × 68,529.62 - Step 4: Simplify right side
125,118.38x = 11,832,616,125.38 - Step 5: Solve for x
x = 11,832,616,125.38/125,118.38 - Step 6: Final answer
x = 94,571.37
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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.