Finding the Fourth Proportional to 100,448.93, 138,609.42 and 60,161.63
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Solution
The fourth proportional to 100,448.93, 138,609.42 and 60,161.63 is: 83,017.00
Step by Step Solution
- Step 1: Write the proportion equation
100,448.93 : 138,609.42 = 60,161.63 : x - Step 2: Convert to fraction form
100,448.93/138,609.42 = 60,161.63/x - Step 3: Cross multiply
100,448.93x = 138,609.42 × 60,161.63 - Step 4: Simplify right side
100,448.93x = 8,338,968,640.55 - Step 5: Solve for x
x = 8,338,968,640.55/100,448.93 - Step 6: Final answer
x = 83,017.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.