Finding the Fourth Proportional to 120,996.74, 181,458.68 and 57,784.26
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Solution
The fourth proportional to 120,996.74, 181,458.68 and 57,784.26 is: 86,658.99
Step by Step Solution
- Step 1: Write the proportion equation
120,996.74 : 181,458.68 = 57,784.26 : x - Step 2: Convert to fraction form
120,996.74/181,458.68 = 57,784.26/x - Step 3: Cross multiply
120,996.74x = 181,458.68 × 57,784.26 - Step 4: Simplify right side
120,996.74x = 10,485,455,544.38 - Step 5: Solve for x
x = 10,485,455,544.38/120,996.74 - Step 6: Final answer
x = 86,658.99
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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.