Finding the Fourth Proportional to 122,659.14, 169,274.42 and 68,943.99
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Solution
The fourth proportional to 122,659.14, 169,274.42 and 68,943.99 is: 95,145.41
Step by Step Solution
- Step 1: Write the proportion equation
122,659.14 : 169,274.42 = 68,943.99 : x - Step 2: Convert to fraction form
122,659.14/169,274.42 = 68,943.99/x - Step 3: Cross multiply
122,659.14x = 169,274.42 × 68,943.99 - Step 4: Simplify right side
122,659.14x = 11,670,453,919.74 - Step 5: Solve for x
x = 11,670,453,919.74/122,659.14 - Step 6: Final answer
x = 95,145.41
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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.