Finding the Fourth Proportional to 122,625.12, 169,227.12 and 68,911.20
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Solution
The fourth proportional to 122,625.12, 169,227.12 and 68,911.20 is: 95,099.96
Step by Step Solution
- Step 1: Write the proportion equation
122,625.12 : 169,227.12 = 68,911.20 : x - Step 2: Convert to fraction form
122,625.12/169,227.12 = 68,911.20/x - Step 3: Cross multiply
122,625.12x = 169,227.12 × 68,911.20 - Step 4: Simplify right side
122,625.12x = 11,661,643,911.74 - Step 5: Solve for x
x = 11,661,643,911.74/122,625.12 - Step 6: Final answer
x = 95,099.96
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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.