Finding the Fourth Proportional to 120,166.70, 180,250.05 and 101,139.80
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Solution
The fourth proportional to 120,166.70, 180,250.05 and 101,139.80 is: 151,709.70
Step by Step Solution
- Step 1: Write the proportion equation
120,166.70 : 180,250.05 = 101,139.80 : x - Step 2: Convert to fraction form
120,166.70/180,250.05 = 101,139.80/x - Step 3: Cross multiply
120,166.70x = 180,250.05 × 101,139.80 - Step 4: Simplify right side
120,166.70x = 18,230,454,006.99 - Step 5: Solve for x
x = 18,230,454,006.99/120,166.70 - Step 6: Final answer
x = 151,709.70
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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.