Finding the Fourth Proportional to 136,627.56, 203,583.09 and 121,721.94
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Solution
The fourth proportional to 136,627.56, 203,583.09 and 121,721.94 is: 181,372.84
Step by Step Solution
- Step 1: Write the proportion equation
136,627.56 : 203,583.09 = 121,721.94 : x - Step 2: Convert to fraction form
136,627.56/203,583.09 = 121,721.94/x - Step 3: Cross multiply
136,627.56x = 203,583.09 × 121,721.94 - Step 4: Simplify right side
136,627.56x = 24,780,528,665.99 - Step 5: Solve for x
x = 24,780,528,665.99/136,627.56 - Step 6: Final answer
x = 181,372.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.