Finding the Fourth Proportional to 126,872.09, 175,083.43 and 69,515.06
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Solution
The fourth proportional to 126,872.09, 175,083.43 and 69,515.06 is: 95,930.75
Step by Step Solution
- Step 1: Write the proportion equation
126,872.09 : 175,083.43 = 69,515.06 : x - Step 2: Convert to fraction form
126,872.09/175,083.43 = 69,515.06/x - Step 3: Cross multiply
126,872.09x = 175,083.43 × 69,515.06 - Step 4: Simplify right side
126,872.09x = 12,170,935,141.46 - Step 5: Solve for x
x = 12,170,935,141.46/126,872.09 - Step 6: Final answer
x = 95,930.75
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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.