Finding the Fourth Proportional to 135,324.30, 202,986.45 and 128,066.70
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Solution
The fourth proportional to 135,324.30, 202,986.45 and 128,066.70 is: 192,100.05
Step by Step Solution
- Step 1: Write the proportion equation
135,324.30 : 202,986.45 = 128,066.70 : x - Step 2: Convert to fraction form
135,324.30/202,986.45 = 128,066.70/x - Step 3: Cross multiply
135,324.30x = 202,986.45 × 128,066.70 - Step 4: Simplify right side
135,324.30x = 25,995,804,796.22 - Step 5: Solve for x
x = 25,995,804,796.22/135,324.30 - Step 6: Final answer
x = 192,100.05
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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.