Finding the Fourth Proportional to 122,205.80, 168,415.70 and 95,305.80
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Solution
The fourth proportional to 122,205.80, 168,415.70 and 95,305.80 is: 131,343.95
Step by Step Solution
- Step 1: Write the proportion equation
122,205.80 : 168,415.70 = 95,305.80 : x - Step 2: Convert to fraction form
122,205.80/168,415.70 = 95,305.80/x - Step 3: Cross multiply
122,205.80x = 168,415.70 × 95,305.80 - Step 4: Simplify right side
122,205.80x = 16,050,993,021.06 - Step 5: Solve for x
x = 16,050,993,021.06/122,205.80 - Step 6: Final answer
x = 131,343.95
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1.5x scale
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.