Finding the Fourth Proportional to 125,453.12, 173,129.76 and 68,868.80
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Solution
The fourth proportional to 125,453.12, 173,129.76 and 68,868.80 is: 95,041.39
Step by Step Solution
- Step 1: Write the proportion equation
125,453.12 : 173,129.76 = 68,868.80 : x - Step 2: Convert to fraction form
125,453.12/173,129.76 = 68,868.80/x - Step 3: Cross multiply
125,453.12x = 173,129.76 × 68,868.80 - Step 4: Simplify right side
125,453.12x = 11,923,238,815.49 - Step 5: Solve for x
x = 11,923,238,815.49/125,453.12 - Step 6: Final answer
x = 95,041.39
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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.