Finding the Fourth Proportional to 122,722.87, 169,351.37 and 69,004.68
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Solution
The fourth proportional to 122,722.87, 169,351.37 and 69,004.68 is: 95,222.98
Step by Step Solution
- Step 1: Write the proportion equation
122,722.87 : 169,351.37 = 69,004.68 : x - Step 2: Convert to fraction form
122,722.87/169,351.37 = 69,004.68/x - Step 3: Cross multiply
122,722.87x = 169,351.37 × 69,004.68 - Step 4: Simplify right side
122,722.87x = 11,686,037,094.41 - Step 5: Solve for x
x = 11,686,037,094.41/122,722.87 - Step 6: Final answer
x = 95,222.98
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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.