Finding the Fourth Proportional to 140,660.24, 194,113.41 and 76,996.94
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Solution
The fourth proportional to 140,660.24, 194,113.41 and 76,996.94 is: 106,257.02
Step by Step Solution
- Step 1: Write the proportion equation
140,660.24 : 194,113.41 = 76,996.94 : x - Step 2: Convert to fraction form
140,660.24/194,113.41 = 76,996.94/x - Step 3: Cross multiply
140,660.24x = 194,113.41 × 76,996.94 - Step 4: Simplify right side
140,660.24x = 14,946,138,582.97 - Step 5: Solve for x
x = 14,946,138,582.97/140,660.24 - Step 6: Final answer
x = 106,257.02
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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.