Finding the Fourth Proportional to 195,749.81, 270,121.94 and 115,161.75
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Solution
The fourth proportional to 195,749.81, 270,121.94 and 115,161.75 is: 158,915.69
Step by Step Solution
- Step 1: Write the proportion equation
195,749.81 : 270,121.94 = 115,161.75 : x - Step 2: Convert to fraction form
195,749.81/270,121.94 = 115,161.75/x - Step 3: Cross multiply
195,749.81x = 270,121.94 × 115,161.75 - Step 4: Simplify right side
195,749.81x = 31,107,715,323.80 - Step 5: Solve for x
x = 31,107,715,323.80/195,749.81 - Step 6: Final answer
x = 158,915.69
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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.