Finding the Fourth Proportional to 135,107.80, 202,661.70 and 36,611.80
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Solution
The fourth proportional to 135,107.80, 202,661.70 and 36,611.80 is: 54,917.70
Step by Step Solution
- Step 1: Write the proportion equation
135,107.80 : 202,661.70 = 36,611.80 : x - Step 2: Convert to fraction form
135,107.80/202,661.70 = 36,611.80/x - Step 3: Cross multiply
135,107.80x = 202,661.70 × 36,611.80 - Step 4: Simplify right side
135,107.80x = 7,419,809,628.06 - Step 5: Solve for x
x = 7,419,809,628.06/135,107.80 - Step 6: Final answer
x = 54,917.70
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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.