Finding the Fourth Proportional to 186,917.20, 257,942.42 and 106,342.99
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Solution
The fourth proportional to 186,917.20, 257,942.42 and 106,342.99 is: 146,751.44
Step by Step Solution
- Step 1: Write the proportion equation
186,917.20 : 257,942.42 = 106,342.99 : x - Step 2: Convert to fraction form
186,917.20/257,942.42 = 106,342.99/x - Step 3: Cross multiply
186,917.20x = 257,942.42 × 106,342.99 - Step 4: Simplify right side
186,917.20x = 27,430,368,190.64 - Step 5: Solve for x
x = 27,430,368,190.64/186,917.20 - Step 6: Final answer
x = 146,751.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.