Finding the Fourth Proportional to 106,960.26, 159,790.34 and 69,212.82
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Solution
The fourth proportional to 106,960.26, 159,790.34 and 69,212.82 is: 103,398.59
Step by Step Solution
- Step 1: Write the proportion equation
106,960.26 : 159,790.34 = 69,212.82 : x - Step 2: Convert to fraction form
106,960.26/159,790.34 = 69,212.82/x - Step 3: Cross multiply
106,960.26x = 159,790.34 × 69,212.82 - Step 4: Simplify right side
106,960.26x = 11,059,539,694.09 - Step 5: Solve for x
x = 11,059,539,694.09/106,960.26 - Step 6: Final answer
x = 103,398.59
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.