Finding the Fourth Proportional to 126,620.73, 189,846.73 and 69,721.44
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Solution
The fourth proportional to 126,620.73, 189,846.73 and 69,721.44 is: 104,535.70
Step by Step Solution
- Step 1: Write the proportion equation
126,620.73 : 189,846.73 = 69,721.44 : x - Step 2: Convert to fraction form
126,620.73/189,846.73 = 69,721.44/x - Step 3: Cross multiply
126,620.73x = 189,846.73 × 69,721.44 - Step 4: Simplify right side
126,620.73x = 13,236,386,097.05 - Step 5: Solve for x
x = 13,236,386,097.05/126,620.73 - Step 6: Final answer
x = 104,535.70
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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.