Finding the Fourth Proportional to 111,497.40, 167,246.10 and 74,107.80
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Solution
The fourth proportional to 111,497.40, 167,246.10 and 74,107.80 is: 111,161.70
Step by Step Solution
- Step 1: Write the proportion equation
111,497.40 : 167,246.10 = 74,107.80 : x - Step 2: Convert to fraction form
111,497.40/167,246.10 = 74,107.80/x - Step 3: Cross multiply
111,497.40x = 167,246.10 × 74,107.80 - Step 4: Simplify right side
111,497.40x = 12,394,240,529.58 - Step 5: Solve for x
x = 12,394,240,529.58/111,497.40 - Step 6: Final answer
x = 111,161.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.