Finding the Fourth Proportional to 106,771.21, 147,340.16 and 63,757.94
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Solution
The fourth proportional to 106,771.21, 147,340.16 and 63,757.94 is: 87,983.50
Step by Step Solution
- Step 1: Write the proportion equation
106,771.21 : 147,340.16 = 63,757.94 : x - Step 2: Convert to fraction form
106,771.21/147,340.16 = 63,757.94/x - Step 3: Cross multiply
106,771.21x = 147,340.16 × 63,757.94 - Step 4: Simplify right side
106,771.21x = 9,394,104,623.11 - Step 5: Solve for x
x = 9,394,104,623.11/106,771.21 - Step 6: Final answer
x = 87,983.50
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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.