Finding the Fourth Proportional to 136,642.10, 203,604.73 and 121,736.48
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Solution
The fourth proportional to 136,642.10, 203,604.73 and 121,736.48 is: 181,394.48
Step by Step Solution
- Step 1: Write the proportion equation
136,642.10 : 203,604.73 = 121,736.48 : x - Step 2: Convert to fraction form
136,642.10/203,604.73 = 121,736.48/x - Step 3: Cross multiply
136,642.10x = 203,604.73 × 121,736.48 - Step 4: Simplify right side
136,642.10x = 24,786,123,141.55 - Step 5: Solve for x
x = 24,786,123,141.55/136,642.10 - Step 6: Final answer
x = 181,394.48
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1.5x scale
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.