Finding the Fourth Proportional to 146,868.75, 202,679.42 and 79,800.75
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Solution
The fourth proportional to 146,868.75, 202,679.42 and 79,800.75 is: 110,125.33
Step by Step Solution
- Step 1: Write the proportion equation
146,868.75 : 202,679.42 = 79,800.75 : x - Step 2: Convert to fraction form
146,868.75/202,679.42 = 79,800.75/x - Step 3: Cross multiply
146,868.75x = 202,679.42 × 79,800.75 - Step 4: Simplify right side
146,868.75x = 16,173,969,326.56 - Step 5: Solve for x
x = 16,173,969,326.56/146,868.75 - Step 6: Final answer
x = 110,125.33
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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.