Finding the Fourth Proportional to 120,219.26, 180,201.71 and 45,306.95
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Solution
The fourth proportional to 120,219.26, 180,201.71 and 45,306.95 is: 67,912.49
Step by Step Solution
- Step 1: Write the proportion equation
120,219.26 : 180,201.71 = 45,306.95 : x - Step 2: Convert to fraction form
120,219.26/180,201.71 = 45,306.95/x - Step 3: Cross multiply
120,219.26x = 180,201.71 × 45,306.95 - Step 4: Simplify right side
120,219.26x = 8,164,389,077.14 - Step 5: Solve for x
x = 8,164,389,077.14/120,219.26 - Step 6: Final answer
x = 67,912.49
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1.5x scale
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.