Finding the Fourth Proportional to 167,970.09, 231,791.79 and 91,489.49
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Solution
The fourth proportional to 167,970.09, 231,791.79 and 91,489.49 is: 126,251.72
Step by Step Solution
- Step 1: Write the proportion equation
167,970.09 : 231,791.79 = 91,489.49 : x - Step 2: Convert to fraction form
167,970.09/231,791.79 = 91,489.49/x - Step 3: Cross multiply
167,970.09x = 231,791.79 × 91,489.49 - Step 4: Simplify right side
167,970.09x = 21,206,512,653.29 - Step 5: Solve for x
x = 21,206,512,653.29/167,970.09 - Step 6: Final answer
x = 126,251.72
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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.