Finding the Fourth Proportional to 132,738.09, 183,178.49 and 73,122.09
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Solution
The fourth proportional to 132,738.09, 183,178.49 and 73,122.09 is: 100,908.44
Step by Step Solution
- Step 1: Write the proportion equation
132,738.09 : 183,178.49 = 73,122.09 : x - Step 2: Convert to fraction form
132,738.09/183,178.49 = 73,122.09/x - Step 3: Cross multiply
132,738.09x = 183,178.49 × 73,122.09 - Step 4: Simplify right side
132,738.09x = 13,394,393,666.23 - Step 5: Solve for x
x = 13,394,393,666.23/132,738.09 - Step 6: Final answer
x = 100,908.44
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1.5x scale
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.