Finding the Fourth Proportional to 129,826.08, 194,739.12 and 31,330.08
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Solution
The fourth proportional to 129,826.08, 194,739.12 and 31,330.08 is: 46,995.12
Step by Step Solution
- Step 1: Write the proportion equation
129,826.08 : 194,739.12 = 31,330.08 : x - Step 2: Convert to fraction form
129,826.08/194,739.12 = 31,330.08/x - Step 3: Cross multiply
129,826.08x = 194,739.12 × 31,330.08 - Step 4: Simplify right side
129,826.08x = 6,101,192,208.73 - Step 5: Solve for x
x = 6,101,192,208.73/129,826.08 - Step 6: Final answer
x = 46,995.12
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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.