Finding the Fourth Proportional to 139,261.26, 192,035.07 and 82,661.70
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Solution
The fourth proportional to 139,261.26, 192,035.07 and 82,661.70 is: 113,986.80
Step by Step Solution
- Step 1: Write the proportion equation
139,261.26 : 192,035.07 = 82,661.70 : x - Step 2: Convert to fraction form
139,261.26/192,035.07 = 82,661.70/x - Step 3: Cross multiply
139,261.26x = 192,035.07 × 82,661.70 - Step 4: Simplify right side
139,261.26x = 15,873,945,345.82 - Step 5: Solve for x
x = 15,873,945,345.82/139,261.26 - Step 6: Final answer
x = 113,986.80
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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.