Finding the Fourth Proportional to 129,485.88, 194,163.76 and 75,467.96
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Solution
The fourth proportional to 129,485.88, 194,163.76 and 75,467.96 is: 113,164.02
Step by Step Solution
- Step 1: Write the proportion equation
129,485.88 : 194,163.76 = 75,467.96 : x - Step 2: Convert to fraction form
129,485.88/194,163.76 = 75,467.96/x - Step 3: Cross multiply
129,485.88x = 194,163.76 × 75,467.96 - Step 4: Simplify right side
129,485.88x = 14,653,142,873.13 - Step 5: Solve for x
x = 14,653,142,873.13/129,485.88 - Step 6: Final answer
x = 113,164.02
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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.