Finding the Fourth Proportional to 195,711.36, 270,077.09 and 115,144.07
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Solution
The fourth proportional to 195,711.36, 270,077.09 and 115,144.07 is: 158,896.12
Step by Step Solution
- Step 1: Write the proportion equation
195,711.36 : 270,077.09 = 115,144.07 : x - Step 2: Convert to fraction form
195,711.36/270,077.09 = 115,144.07/x - Step 3: Cross multiply
195,711.36x = 270,077.09 × 115,144.07 - Step 4: Simplify right side
195,711.36x = 31,097,775,597.12 - Step 5: Solve for x
x = 31,097,775,597.12/195,711.36 - Step 6: Final answer
x = 158,896.12
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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.