Finding the Fourth Proportional to 122,065.20, 182,879.09 and 43,129.08
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Solution
The fourth proportional to 122,065.20, 182,879.09 and 43,129.08 is: 64,616.34
Step by Step Solution
- Step 1: Write the proportion equation
122,065.20 : 182,879.09 = 43,129.08 : x - Step 2: Convert to fraction form
122,065.20/182,879.09 = 43,129.08/x - Step 3: Cross multiply
122,065.20x = 182,879.09 × 43,129.08 - Step 4: Simplify right side
122,065.20x = 7,887,406,902.94 - Step 5: Solve for x
x = 7,887,406,902.94/122,065.20 - Step 6: Final answer
x = 64,616.34
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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.