Finding the Fourth Proportional to 140,535.44, 193,936.38 and 76,872.68
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Solution
The fourth proportional to 140,535.44, 193,936.38 and 76,872.68 is: 106,082.92
Step by Step Solution
- Step 1: Write the proportion equation
140,535.44 : 193,936.38 = 76,872.68 : x - Step 2: Convert to fraction form
140,535.44/193,936.38 = 76,872.68/x - Step 3: Cross multiply
140,535.44x = 193,936.38 × 76,872.68 - Step 4: Simplify right side
140,535.44x = 14,908,409,280.10 - Step 5: Solve for x
x = 14,908,409,280.10/140,535.44 - Step 6: Final answer
x = 106,082.92
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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.