Finding the Fourth Proportional to 128,197.85, 192,296.92 and 33,427.95
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Solution
The fourth proportional to 128,197.85, 192,296.92 and 33,427.95 is: 50,141.96
Step by Step Solution
- Step 1: Write the proportion equation
128,197.85 : 192,296.92 = 33,427.95 : x - Step 2: Convert to fraction form
128,197.85/192,296.92 = 33,427.95/x - Step 3: Cross multiply
128,197.85x = 192,296.92 × 33,427.95 - Step 4: Simplify right side
128,197.85x = 6,428,090,698.29 - Step 5: Solve for x
x = 6,428,090,698.29/128,197.85 - Step 6: Final answer
x = 50,141.96
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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.