Finding the Fourth Proportional to 122,097.97, 168,486.24 and 74,366.70
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Solution
The fourth proportional to 122,097.97, 168,486.24 and 74,366.70 is: 102,620.59
Step by Step Solution
- Step 1: Write the proportion equation
122,097.97 : 168,486.24 = 74,366.70 : x - Step 2: Convert to fraction form
122,097.97/168,486.24 = 74,366.70/x - Step 3: Cross multiply
122,097.97x = 168,486.24 × 74,366.70 - Step 4: Simplify right side
122,097.97x = 12,529,765,664.21 - Step 5: Solve for x
x = 12,529,765,664.21/122,097.97 - Step 6: Final answer
x = 102,620.59
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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.