Finding the Fourth Proportional to 136,622.30, 203,575.28 and 121,716.68
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Solution
The fourth proportional to 136,622.30, 203,575.28 and 121,716.68 is: 181,365.02
Step by Step Solution
- Step 1: Write the proportion equation
136,622.30 : 203,575.28 = 121,716.68 : x - Step 2: Convert to fraction form
136,622.30/203,575.28 = 121,716.68/x - Step 3: Cross multiply
136,622.30x = 203,575.28 × 121,716.68 - Step 4: Simplify right side
136,622.30x = 24,778,505,585.21 - Step 5: Solve for x
x = 24,778,505,585.21/136,622.30 - Step 6: Final answer
x = 181,365.02
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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.