Finding the Fourth Proportional to 122,742.81, 169,350.14 and 73,664.49
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Solution
The fourth proportional to 122,742.81, 169,350.14 and 73,664.49 is: 101,636.03
Step by Step Solution
- Step 1: Write the proportion equation
122,742.81 : 169,350.14 = 73,664.49 : x - Step 2: Convert to fraction form
122,742.81/169,350.14 = 73,664.49/x - Step 3: Cross multiply
122,742.81x = 169,350.14 × 73,664.49 - Step 4: Simplify right side
122,742.81x = 12,475,091,694.53 - Step 5: Solve for x
x = 12,475,091,694.53/122,742.81 - Step 6: Final answer
x = 101,636.03
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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.