Finding the Fourth Proportional to 128,836.71, 193,268.30 and 44,596.74
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Solution
The fourth proportional to 128,836.71, 193,268.30 and 44,596.74 is: 66,899.69
Step by Step Solution
- Step 1: Write the proportion equation
128,836.71 : 193,268.30 = 44,596.74 : x - Step 2: Convert to fraction form
128,836.71/193,268.30 = 44,596.74/x - Step 3: Cross multiply
128,836.71x = 193,268.30 × 44,596.74 - Step 4: Simplify right side
128,836.71x = 8,619,135,902.36 - Step 5: Solve for x
x = 8,619,135,902.36/128,836.71 - Step 6: Final answer
x = 66,899.69
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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.