Finding the Fourth Proportional to 122,692.44, 169,303.86 and 71,717.10
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Solution
The fourth proportional to 122,692.44, 169,303.86 and 71,717.10 is: 98,962.75
Step by Step Solution
- Step 1: Write the proportion equation
122,692.44 : 169,303.86 = 71,717.10 : x - Step 2: Convert to fraction form
122,692.44/169,303.86 = 71,717.10/x - Step 3: Cross multiply
122,692.44x = 169,303.86 × 71,717.10 - Step 4: Simplify right side
122,692.44x = 12,141,981,858.01 - Step 5: Solve for x
x = 12,141,981,858.01/122,692.44 - Step 6: Final answer
x = 98,962.75
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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.