Finding the Fourth Proportional to 136,882.24, 188,844.48 and 80,272.96
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Solution
The fourth proportional to 136,882.24, 188,844.48 and 80,272.96 is: 110,745.60
Step by Step Solution
- Step 1: Write the proportion equation
136,882.24 : 188,844.48 = 80,272.96 : x - Step 2: Convert to fraction form
136,882.24/188,844.48 = 80,272.96/x - Step 3: Cross multiply
136,882.24x = 188,844.48 × 80,272.96 - Step 4: Simplify right side
136,882.24x = 15,159,105,389.26 - Step 5: Solve for x
x = 15,159,105,389.26/136,882.24 - Step 6: Final answer
x = 110,745.60
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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.