Finding the Fourth Proportional to 181,619.37, 250,628.42 and 99,939.99
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Solution
The fourth proportional to 181,619.37, 250,628.42 and 99,939.99 is: 137,913.71
Step by Step Solution
- Step 1: Write the proportion equation
181,619.37 : 250,628.42 = 99,939.99 : x - Step 2: Convert to fraction form
181,619.37/250,628.42 = 99,939.99/x - Step 3: Cross multiply
181,619.37x = 250,628.42 × 99,939.99 - Step 4: Simplify right side
181,619.37x = 25,047,801,788.52 - Step 5: Solve for x
x = 25,047,801,788.52/181,619.37 - Step 6: Final answer
x = 137,913.71
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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.