Finding the Fourth Proportional to 125,532.41, 173,236.09 and 68,943.78
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Solution
The fourth proportional to 125,532.41, 173,236.09 and 68,943.78 is: 95,143.17
Step by Step Solution
- Step 1: Write the proportion equation
125,532.41 : 173,236.09 = 68,943.78 : x - Step 2: Convert to fraction form
125,532.41/173,236.09 = 68,943.78/x - Step 3: Cross multiply
125,532.41x = 173,236.09 × 68,943.78 - Step 4: Simplify right side
125,532.41x = 11,943,550,877.02 - Step 5: Solve for x
x = 11,943,550,877.02/125,532.41 - Step 6: Final answer
x = 95,143.17
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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.