Finding the Fourth Proportional to 106,534.26, 159,759.86 and 39,938.09
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Solution
The fourth proportional to 106,534.26, 159,759.86 and 39,938.09 is: 59,891.56
Step by Step Solution
- Step 1: Write the proportion equation
106,534.26 : 159,759.86 = 39,938.09 : x - Step 2: Convert to fraction form
106,534.26/159,759.86 = 39,938.09/x - Step 3: Cross multiply
106,534.26x = 159,759.86 × 39,938.09 - Step 4: Simplify right side
106,534.26x = 6,380,502,668.58 - Step 5: Solve for x
x = 6,380,502,668.58/106,534.26 - Step 6: Final answer
x = 59,891.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.