Finding the Fourth Proportional to 136,422.36, 188,260.02 and 75,992.92
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Solution
The fourth proportional to 136,422.36, 188,260.02 and 75,992.92 is: 104,868.65
Step by Step Solution
- Step 1: Write the proportion equation
136,422.36 : 188,260.02 = 75,992.92 : x - Step 2: Convert to fraction form
136,422.36/188,260.02 = 75,992.92/x - Step 3: Cross multiply
136,422.36x = 188,260.02 × 75,992.92 - Step 4: Simplify right side
136,422.36x = 14,306,428,639.06 - Step 5: Solve for x
x = 14,306,428,639.06/136,422.36 - Step 6: Final answer
x = 104,868.65
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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.