Finding the Fourth Proportional to 128,268.74, 177,059.44 and 96,529.70
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Solution
The fourth proportional to 128,268.74, 177,059.44 and 96,529.70 is: 133,247.54
Step by Step Solution
- Step 1: Write the proportion equation
128,268.74 : 177,059.44 = 96,529.70 : x - Step 2: Convert to fraction form
128,268.74/177,059.44 = 96,529.70/x - Step 3: Cross multiply
128,268.74x = 177,059.44 × 96,529.70 - Step 4: Simplify right side
128,268.74x = 17,091,494,625.37 - Step 5: Solve for x
x = 17,091,494,625.37/128,268.74 - Step 6: Final answer
x = 133,247.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.