Finding the Fourth Proportional to 149,793.42, 206,716.29 and 85,259.49
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Solution
The fourth proportional to 149,793.42, 206,716.29 and 85,259.49 is: 117,658.88
Step by Step Solution
- Step 1: Write the proportion equation
149,793.42 : 206,716.29 = 85,259.49 : x - Step 2: Convert to fraction form
149,793.42/206,716.29 = 85,259.49/x - Step 3: Cross multiply
149,793.42x = 206,716.29 × 85,259.49 - Step 4: Simplify right side
149,793.42x = 17,624,525,460.09 - Step 5: Solve for x
x = 17,624,525,460.09/149,793.42 - Step 6: Final answer
x = 117,658.88
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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.