Finding the Fourth Proportional to 127,037.56, 174,911.88 and 107,879.44
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Solution
The fourth proportional to 127,037.56, 174,911.88 and 107,879.44 is: 148,533.99
Step by Step Solution
- Step 1: Write the proportion equation
127,037.56 : 174,911.88 = 107,879.44 : x - Step 2: Convert to fraction form
127,037.56/174,911.88 = 107,879.44/x - Step 3: Cross multiply
127,037.56x = 174,911.88 × 107,879.44 - Step 4: Simplify right side
127,037.56x = 18,869,395,663.75 - Step 5: Solve for x
x = 18,869,395,663.75/127,037.56 - Step 6: Final answer
x = 148,533.99
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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.