Finding the Fourth Proportional to 136,822.19, 188,846.12 and 80,251.79
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Solution
The fourth proportional to 136,822.19, 188,846.12 and 80,251.79 is: 110,765.94
Step by Step Solution
- Step 1: Write the proportion equation
136,822.19 : 188,846.12 = 80,251.79 : x - Step 2: Convert to fraction form
136,822.19/188,846.12 = 80,251.79/x - Step 3: Cross multiply
136,822.19x = 188,846.12 × 80,251.79 - Step 4: Simplify right side
136,822.19x = 15,155,238,763.30 - Step 5: Solve for x
x = 15,155,238,763.30/136,822.19 - Step 6: Final answer
x = 110,765.94
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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.