Finding the Fourth Proportional to 136,397.09, 204,464.41 and 69,868.55
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Solution
The fourth proportional to 136,397.09, 204,464.41 and 69,868.55 is: 104,735.61
Step by Step Solution
- Step 1: Write the proportion equation
136,397.09 : 204,464.41 = 69,868.55 : x - Step 2: Convert to fraction form
136,397.09/204,464.41 = 69,868.55/x - Step 3: Cross multiply
136,397.09x = 204,464.41 × 69,868.55 - Step 4: Simplify right side
136,397.09x = 14,285,631,853.31 - Step 5: Solve for x
x = 14,285,631,853.31/136,397.09 - Step 6: Final answer
x = 104,735.61
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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.