Finding the Fourth Proportional to 136,804.26, 188,786.18 and 76,373.18
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Solution
The fourth proportional to 136,804.26, 188,786.18 and 76,373.18 is: 105,392.92
Step by Step Solution
- Step 1: Write the proportion equation
136,804.26 : 188,786.18 = 76,373.18 : x - Step 2: Convert to fraction form
136,804.26/188,786.18 = 76,373.18/x - Step 3: Cross multiply
136,804.26x = 188,786.18 × 76,373.18 - Step 4: Simplify right side
136,804.26x = 14,418,200,906.65 - Step 5: Solve for x
x = 14,418,200,906.65/136,804.26 - Step 6: Final answer
x = 105,392.92
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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.