Finding the Fourth Proportional to 125,811.72, 173,620.17 and 69,223.09
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Solution
The fourth proportional to 125,811.72, 173,620.17 and 69,223.09 is: 95,527.86
Step by Step Solution
- Step 1: Write the proportion equation
125,811.72 : 173,620.17 = 69,223.09 : x - Step 2: Convert to fraction form
125,811.72/173,620.17 = 69,223.09/x - Step 3: Cross multiply
125,811.72x = 173,620.17 × 69,223.09 - Step 4: Simplify right side
125,811.72x = 12,018,524,653.73 - Step 5: Solve for x
x = 12,018,524,653.73/125,811.72 - Step 6: Final answer
x = 95,527.86
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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.