Finding the Fourth Proportional to 122,486.14, 169,025.43 and 68,770.18
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Solution
The fourth proportional to 122,486.14, 169,025.43 and 68,770.18 is: 94,899.79
Step by Step Solution
- Step 1: Write the proportion equation
122,486.14 : 169,025.43 = 68,770.18 : x - Step 2: Convert to fraction form
122,486.14/169,025.43 = 68,770.18/x - Step 3: Cross multiply
122,486.14x = 169,025.43 × 68,770.18 - Step 4: Simplify right side
122,486.14x = 11,623,909,245.68 - Step 5: Solve for x
x = 11,623,909,245.68/122,486.14 - Step 6: Final answer
x = 94,899.79
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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.