Finding the Fourth Proportional to 115,884.26, 173,840.97 and 40,986.80
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Solution
The fourth proportional to 115,884.26, 173,840.97 and 40,986.80 is: 61,485.36
Step by Step Solution
- Step 1: Write the proportion equation
115,884.26 : 173,840.97 = 40,986.80 : x - Step 2: Convert to fraction form
115,884.26/173,840.97 = 40,986.80/x - Step 3: Cross multiply
115,884.26x = 173,840.97 × 40,986.80 - Step 4: Simplify right side
115,884.26x = 7,125,185,069.20 - Step 5: Solve for x
x = 7,125,185,069.20/115,884.26 - Step 6: Final answer
x = 61,485.36
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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.