Finding the Fourth Proportional to 190,640.69, 263,115.69 and 105,785.09
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Solution
The fourth proportional to 190,640.69, 263,115.69 and 105,785.09 is: 146,000.92
Step by Step Solution
- Step 1: Write the proportion equation
190,640.69 : 263,115.69 = 105,785.09 : x - Step 2: Convert to fraction form
190,640.69/263,115.69 = 105,785.09/x - Step 3: Cross multiply
190,640.69x = 263,115.69 × 105,785.09 - Step 4: Simplify right side
190,640.69x = 27,833,716,947.06 - Step 5: Solve for x
x = 27,833,716,947.06/190,640.69 - Step 6: Final answer
x = 146,000.92
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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.