Finding the Fourth Proportional to 104,907.79, 144,768.68 and 57,161.49
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Solution
The fourth proportional to 104,907.79, 144,768.68 and 57,161.49 is: 78,880.64
Step by Step Solution
- Step 1: Write the proportion equation
104,907.79 : 144,768.68 = 57,161.49 : x - Step 2: Convert to fraction form
104,907.79/144,768.68 = 57,161.49/x - Step 3: Cross multiply
104,907.79x = 144,768.68 × 57,161.49 - Step 4: Simplify right side
104,907.79x = 8,275,193,454.13 - Step 5: Solve for x
x = 8,275,193,454.13/104,907.79 - Step 6: Final answer
x = 78,880.64
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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.