Finding the Fourth Proportional to 104,908.29, 144,769.37 and 57,161.99
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Solution
The fourth proportional to 104,908.29, 144,769.37 and 57,161.99 is: 78,881.33
Step by Step Solution
- Step 1: Write the proportion equation
104,908.29 : 144,769.37 = 57,161.99 : x - Step 2: Convert to fraction form
104,908.29/144,769.37 = 57,161.99/x - Step 3: Cross multiply
104,908.29x = 144,769.37 × 57,161.99 - Step 4: Simplify right side
104,908.29x = 8,275,305,280.25 - Step 5: Solve for x
x = 8,275,305,280.25/104,908.29 - Step 6: Final answer
x = 78,881.33
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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.