Finding the Fourth Proportional to 136,796.04, 188,796.42 and 80,212.68
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Solution
The fourth proportional to 136,796.04, 188,796.42 and 80,212.68 is: 110,703.99
Step by Step Solution
- Step 1: Write the proportion equation
136,796.04 : 188,796.42 = 80,212.68 : x - Step 2: Convert to fraction form
136,796.04/188,796.42 = 80,212.68/x - Step 3: Cross multiply
136,796.04x = 188,796.42 × 80,212.68 - Step 4: Simplify right side
136,796.04x = 15,143,866,822.61 - Step 5: Solve for x
x = 15,143,866,822.61/136,796.04 - Step 6: Final answer
x = 110,703.99
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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.