Finding the Fourth Proportional to 121,969.24, 182,954.06 and 80,113.70
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Solution
The fourth proportional to 121,969.24, 182,954.06 and 80,113.70 is: 120,170.68
Step by Step Solution
- Step 1: Write the proportion equation
121,969.24 : 182,954.06 = 80,113.70 : x - Step 2: Convert to fraction form
121,969.24/182,954.06 = 80,113.70/x - Step 3: Cross multiply
121,969.24x = 182,954.06 × 80,113.70 - Step 4: Simplify right side
121,969.24x = 14,657,126,676.62 - Step 5: Solve for x
x = 14,657,126,676.62/121,969.24 - Step 6: Final answer
x = 120,170.68
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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.