Finding the Fourth Proportional to 135,227.20, 202,840.80 and 36,731.20
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Solution
The fourth proportional to 135,227.20, 202,840.80 and 36,731.20 is: 55,096.80
Step by Step Solution
- Step 1: Write the proportion equation
135,227.20 : 202,840.80 = 36,731.20 : x - Step 2: Convert to fraction form
135,227.20/202,840.80 = 36,731.20/x - Step 3: Cross multiply
135,227.20x = 202,840.80 × 36,731.20 - Step 4: Simplify right side
135,227.20x = 7,450,585,992.96 - Step 5: Solve for x
x = 7,450,585,992.96/135,227.20 - Step 6: Final answer
x = 55,096.80
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1.5x scale
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.