Finding the Fourth Proportional to 131,927.80, 197,891.70 and 33,431.80
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Solution
The fourth proportional to 131,927.80, 197,891.70 and 33,431.80 is: 50,147.70
Step by Step Solution
- Step 1: Write the proportion equation
131,927.80 : 197,891.70 = 33,431.80 : x - Step 2: Convert to fraction form
131,927.80/197,891.70 = 33,431.80/x - Step 3: Cross multiply
131,927.80x = 197,891.70 × 33,431.80 - Step 4: Simplify right side
131,927.80x = 6,615,875,736.06 - Step 5: Solve for x
x = 6,615,875,736.06/131,927.80 - Step 6: Final answer
x = 50,147.70
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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.