Finding the Fourth Proportional to 120,743.36, 181,091.08 and 60,755.84
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Solution
The fourth proportional to 120,743.36, 181,091.08 and 60,755.84 is: 91,121.70
Step by Step Solution
- Step 1: Write the proportion equation
120,743.36 : 181,091.08 = 60,755.84 : x - Step 2: Convert to fraction form
120,743.36/181,091.08 = 60,755.84/x - Step 3: Cross multiply
120,743.36x = 181,091.08 × 60,755.84 - Step 4: Simplify right side
120,743.36x = 11,002,340,681.91 - Step 5: Solve for x
x = 11,002,340,681.91/120,743.36 - Step 6: Final answer
x = 91,121.70
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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.