Finding the Fourth Proportional to 140,745.14, 194,231.12 and 77,082.94
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Solution
The fourth proportional to 140,745.14, 194,231.12 and 77,082.94 is: 106,376.00
Step by Step Solution
- Step 1: Write the proportion equation
140,745.14 : 194,231.12 = 77,082.94 : x - Step 2: Convert to fraction form
140,745.14/194,231.12 = 77,082.94/x - Step 3: Cross multiply
140,745.14x = 194,231.12 × 77,082.94 - Step 4: Simplify right side
140,745.14x = 14,971,905,626.47 - Step 5: Solve for x
x = 14,971,905,626.47/140,745.14 - Step 6: Final answer
x = 106,376.00
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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.