Finding the Fourth Proportional to 122,964.87, 169,692.12 and 69,250.80
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Solution
The fourth proportional to 122,964.87, 169,692.12 and 69,250.80 is: 95,566.44
Step by Step Solution
- Step 1: Write the proportion equation
122,964.87 : 169,692.12 = 69,250.80 : x - Step 2: Convert to fraction form
122,964.87/169,692.12 = 69,250.80/x - Step 3: Cross multiply
122,964.87x = 169,692.12 × 69,250.80 - Step 4: Simplify right side
122,964.87x = 11,751,315,063.70 - Step 5: Solve for x
x = 11,751,315,063.70/122,964.87 - Step 6: Final answer
x = 95,566.44
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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.