Finding the Fourth Proportional to 181,936.96, 272,934.64 and 76,771.44
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Solution
The fourth proportional to 181,936.96, 272,934.64 and 76,771.44 is: 115,169.48
Step by Step Solution
- Step 1: Write the proportion equation
181,936.96 : 272,934.64 = 76,771.44 : x - Step 2: Convert to fraction form
181,936.96/272,934.64 = 76,771.44/x - Step 3: Cross multiply
181,936.96x = 272,934.64 × 76,771.44 - Step 4: Simplify right side
181,936.96x = 20,953,585,338.68 - Step 5: Solve for x
x = 20,953,585,338.68/181,936.96 - Step 6: Final answer
x = 115,169.48
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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.