Finding the Fourth Proportional to 111,546.21, 153,933.90 and 60,558.99
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Solution
The fourth proportional to 111,546.21, 153,933.90 and 60,558.99 is: 83,571.47
Step by Step Solution
- Step 1: Write the proportion equation
111,546.21 : 153,933.90 = 60,558.99 : x - Step 2: Convert to fraction form
111,546.21/153,933.90 = 60,558.99/x - Step 3: Cross multiply
111,546.21x = 153,933.90 × 60,558.99 - Step 4: Simplify right side
111,546.21x = 9,322,080,741.09 - Step 5: Solve for x
x = 9,322,080,741.09/111,546.21 - Step 6: Final answer
x = 83,571.47
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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.