Finding the Fourth Proportional to 149,806.26, 206,815.68 and 102,129.66
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Solution
The fourth proportional to 149,806.26, 206,815.68 and 102,129.66 is: 140,995.54
Step by Step Solution
- Step 1: Write the proportion equation
149,806.26 : 206,815.68 = 102,129.66 : x - Step 2: Convert to fraction form
149,806.26/206,815.68 = 102,129.66/x - Step 3: Cross multiply
149,806.26x = 206,815.68 × 102,129.66 - Step 4: Simplify right side
149,806.26x = 21,122,015,081.07 - Step 5: Solve for x
x = 21,122,015,081.07/149,806.26 - Step 6: Final answer
x = 140,995.54
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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.