Finding the Fourth Proportional to 100,077.57, 138,220.43 and 68,191.11
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Solution
The fourth proportional to 100,077.57, 138,220.43 and 68,191.11 is: 94,180.99
Step by Step Solution
- Step 1: Write the proportion equation
100,077.57 : 138,220.43 = 68,191.11 : x - Step 2: Convert to fraction form
100,077.57/138,220.43 = 68,191.11/x - Step 3: Cross multiply
100,077.57x = 138,220.43 × 68,191.11 - Step 4: Simplify right side
100,077.57x = 9,425,404,205.42 - Step 5: Solve for x
x = 9,425,404,205.42/100,077.57 - Step 6: Final answer
x = 94,180.99
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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.