Finding the Fourth Proportional to 140,658.24, 194,107.68 and 76,994.88
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Solution
The fourth proportional to 140,658.24, 194,107.68 and 76,994.88 is: 106,252.56
Step by Step Solution
- Step 1: Write the proportion equation
140,658.24 : 194,107.68 = 76,994.88 : x - Step 2: Convert to fraction form
140,658.24/194,107.68 = 76,994.88/x - Step 3: Cross multiply
140,658.24x = 194,107.68 × 76,994.88 - Step 4: Simplify right side
140,658.24x = 14,945,297,528.68 - Step 5: Solve for x
x = 14,945,297,528.68/140,658.24 - Step 6: Final answer
x = 106,252.56
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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.