Finding the Fourth Proportional to 104,930.70, 144,800.69 and 57,183.09
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Solution
The fourth proportional to 104,930.70, 144,800.69 and 57,183.09 is: 78,910.66
Step by Step Solution
- Step 1: Write the proportion equation
104,930.70 : 144,800.69 = 57,183.09 : x - Step 2: Convert to fraction form
104,930.70/144,800.69 = 57,183.09/x - Step 3: Cross multiply
104,930.70x = 144,800.69 × 57,183.09 - Step 4: Simplify right side
104,930.70x = 8,280,150,888.33 - Step 5: Solve for x
x = 8,280,150,888.33/104,930.70 - Step 6: Final answer
x = 78,910.66
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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.