Finding the Fourth Proportional to 104,907.28, 144,767.99 and 57,160.99
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Solution
The fourth proportional to 104,907.28, 144,767.99 and 57,160.99 is: 78,879.96
Step by Step Solution
- Step 1: Write the proportion equation
104,907.28 : 144,767.99 = 57,160.99 : x - Step 2: Convert to fraction form
104,907.28/144,767.99 = 57,160.99/x - Step 3: Cross multiply
104,907.28x = 144,767.99 × 57,160.99 - Step 4: Simplify right side
104,907.28x = 8,275,081,628.71 - Step 5: Solve for x
x = 8,275,081,628.71/104,907.28 - Step 6: Final answer
x = 78,879.96
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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.