Finding the Fourth Proportional to 203,778.10, 281,199.74 and 113,127.05
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Solution
The fourth proportional to 203,778.10, 281,199.74 and 113,127.05 is: 156,107.53
Step by Step Solution
- Step 1: Write the proportion equation
203,778.10 : 281,199.74 = 113,127.05 : x - Step 2: Convert to fraction form
203,778.10/281,199.74 = 113,127.05/x - Step 3: Cross multiply
203,778.10x = 281,199.74 × 113,127.05 - Step 4: Simplify right side
203,778.10x = 31,811,295,075.33 - Step 5: Solve for x
x = 31,811,295,075.33/203,778.10 - Step 6: Final answer
x = 156,107.53
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1.5x scale
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.