Finding the Fourth Proportional to 125,529.41, 173,231.95 and 68,940.78
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Solution
The fourth proportional to 125,529.41, 173,231.95 and 68,940.78 is: 95,139.03
Step by Step Solution
- Step 1: Write the proportion equation
125,529.41 : 173,231.95 = 68,940.78 : x - Step 2: Convert to fraction form
125,529.41/173,231.95 = 68,940.78/x - Step 3: Cross multiply
125,529.41x = 173,231.95 × 68,940.78 - Step 4: Simplify right side
125,529.41x = 11,942,746,014.65 - Step 5: Solve for x
x = 11,942,746,014.65/125,529.41 - Step 6: Final answer
x = 95,139.03
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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.