Finding the Fourth Proportional to 159,198.14, 219,685.49 and 87,576.32
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Solution
The fourth proportional to 159,198.14, 219,685.49 and 87,576.32 is: 120,850.95
Step by Step Solution
- Step 1: Write the proportion equation
159,198.14 : 219,685.49 = 87,576.32 : x - Step 2: Convert to fraction form
159,198.14/219,685.49 = 87,576.32/x - Step 3: Cross multiply
159,198.14x = 219,685.49 × 87,576.32 - Step 4: Simplify right side
159,198.14x = 19,239,245,235.29 - Step 5: Solve for x
x = 19,239,245,235.29/159,198.14 - Step 6: Final answer
x = 120,850.95
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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.