Finding the Fourth Proportional to 136,629.60, 204,814.80 and 122,632.80
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Solution
The fourth proportional to 136,629.60, 204,814.80 and 122,632.80 is: 183,832.88
Step by Step Solution
- Step 1: Write the proportion equation
136,629.60 : 204,814.80 = 122,632.80 : x - Step 2: Convert to fraction form
136,629.60/204,814.80 = 122,632.80/x - Step 3: Cross multiply
136,629.60x = 204,814.80 × 122,632.80 - Step 4: Simplify right side
136,629.60x = 25,117,012,405.44 - Step 5: Solve for x
x = 25,117,012,405.44/136,629.60 - Step 6: Final answer
x = 183,832.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.