Finding the Fourth Proportional to 126,372.64, 174,331.28 and 75,349.44
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Solution
The fourth proportional to 126,372.64, 174,331.28 and 75,349.44 is: 103,944.69
Step by Step Solution
- Step 1: Write the proportion equation
126,372.64 : 174,331.28 = 75,349.44 : x - Step 2: Convert to fraction form
126,372.64/174,331.28 = 75,349.44/x - Step 3: Cross multiply
126,372.64x = 174,331.28 × 75,349.44 - Step 4: Simplify right side
126,372.64x = 13,135,764,322.48 - Step 5: Solve for x
x = 13,135,764,322.48/126,372.64 - Step 6: Final answer
x = 103,944.69
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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.