Finding the Fourth Proportional to 115,747.20, 173,620.80 and 53,383.68
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Solution
The fourth proportional to 115,747.20, 173,620.80 and 53,383.68 is: 80,075.52
Step by Step Solution
- Step 1: Write the proportion equation
115,747.20 : 173,620.80 = 53,383.68 : x - Step 2: Convert to fraction form
115,747.20/173,620.80 = 53,383.68/x - Step 3: Cross multiply
115,747.20x = 173,620.80 × 53,383.68 - Step 4: Simplify right side
115,747.20x = 9,268,517,228.54 - Step 5: Solve for x
x = 9,268,517,228.54/115,747.20 - Step 6: Final answer
x = 80,075.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.