Finding the Fourth Proportional to 129,661.70, 194,233.35 and 74,192.90
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Solution
The fourth proportional to 129,661.70, 194,233.35 and 74,192.90 is: 111,141.03
Step by Step Solution
- Step 1: Write the proportion equation
129,661.70 : 194,233.35 = 74,192.90 : x - Step 2: Convert to fraction form
129,661.70/194,233.35 = 74,192.90/x - Step 3: Cross multiply
129,661.70x = 194,233.35 × 74,192.90 - Step 4: Simplify right side
129,661.70x = 14,410,735,513.22 - Step 5: Solve for x
x = 14,410,735,513.22/129,661.70 - Step 6: Final answer
x = 111,141.03
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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.