Finding the Fourth Proportional to 136,112.60, 203,780.10 and 122,115.80
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Solution
The fourth proportional to 136,112.60, 203,780.10 and 122,115.80 is: 182,824.88
Step by Step Solution
- Step 1: Write the proportion equation
136,112.60 : 203,780.10 = 122,115.80 : x - Step 2: Convert to fraction form
136,112.60/203,780.10 = 122,115.80/x - Step 3: Cross multiply
136,112.60x = 203,780.10 × 122,115.80 - Step 4: Simplify right side
136,112.60x = 24,884,769,935.58 - Step 5: Solve for x
x = 24,884,769,935.58/136,112.60 - Step 6: Final answer
x = 182,824.88
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1.5x scale
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.