Finding the Fourth Proportional to 122,194.14, 168,579.79 and 76,227.03
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Solution
The fourth proportional to 122,194.14, 168,579.79 and 76,227.03 is: 105,163.28
Step by Step Solution
- Step 1: Write the proportion equation
122,194.14 : 168,579.79 = 76,227.03 : x - Step 2: Convert to fraction form
122,194.14/168,579.79 = 76,227.03/x - Step 3: Cross multiply
122,194.14x = 168,579.79 × 76,227.03 - Step 4: Simplify right side
122,194.14x = 12,850,336,709.72 - Step 5: Solve for x
x = 12,850,336,709.72/122,194.14 - Step 6: Final answer
x = 105,163.28
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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.