Finding the Fourth Proportional to 138,161.56, 207,242.37 and 49,409.68
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Solution
The fourth proportional to 138,161.56, 207,242.37 and 49,409.68 is: 74,114.53
Step by Step Solution
- Step 1: Write the proportion equation
138,161.56 : 207,242.37 = 49,409.68 : x - Step 2: Convert to fraction form
138,161.56/207,242.37 = 49,409.68/x - Step 3: Cross multiply
138,161.56x = 207,242.37 × 49,409.68 - Step 4: Simplify right side
138,161.56x = 10,239,779,184.14 - Step 5: Solve for x
x = 10,239,779,184.14/138,161.56 - Step 6: Final answer
x = 74,114.53
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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.