Finding the Fourth Proportional to 120,742.13, 181,072.19 and 41,837.94
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Solution
The fourth proportional to 120,742.13, 181,072.19 and 41,837.94 is: 62,742.70
Step by Step Solution
- Step 1: Write the proportion equation
120,742.13 : 181,072.19 = 41,837.94 : x - Step 2: Convert to fraction form
120,742.13/181,072.19 = 41,837.94/x - Step 3: Cross multiply
120,742.13x = 181,072.19 × 41,837.94 - Step 4: Simplify right side
120,742.13x = 7,575,687,525.48 - Step 5: Solve for x
x = 7,575,687,525.48/120,742.13 - Step 6: Final answer
x = 62,742.70
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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.