Finding the Fourth Proportional to 190,685.15, 263,046.16 and 113,115.68
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Solution
The fourth proportional to 190,685.15, 263,046.16 and 113,115.68 is: 156,040.70
Step by Step Solution
- Step 1: Write the proportion equation
190,685.15 : 263,046.16 = 113,115.68 : x - Step 2: Convert to fraction form
190,685.15/263,046.16 = 113,115.68/x - Step 3: Cross multiply
190,685.15x = 263,046.16 × 113,115.68 - Step 4: Simplify right side
190,685.15x = 29,754,643,378.98 - Step 5: Solve for x
x = 29,754,643,378.98/190,685.15 - Step 6: Final answer
x = 156,040.70
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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.