Finding the Fourth Proportional to 122,482.36, 169,035.42 and 68,770.90
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Solution
The fourth proportional to 122,482.36, 169,035.42 and 68,770.90 is: 94,909.32
Step by Step Solution
- Step 1: Write the proportion equation
122,482.36 : 169,035.42 = 68,770.90 : x - Step 2: Convert to fraction form
122,482.36/169,035.42 = 68,770.90/x - Step 3: Cross multiply
122,482.36x = 169,035.42 × 68,770.90 - Step 4: Simplify right side
122,482.36x = 11,624,717,965.28 - Step 5: Solve for x
x = 11,624,717,965.28/122,482.36 - Step 6: Final answer
x = 94,909.32
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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.