Finding the Fourth Proportional to 122,407.36, 183,619.94 and 51,258.44
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Solution
The fourth proportional to 122,407.36, 183,619.94 and 51,258.44 is: 76,891.39
Step by Step Solution
- Step 1: Write the proportion equation
122,407.36 : 183,619.94 = 51,258.44 : x - Step 2: Convert to fraction form
122,407.36/183,619.94 = 51,258.44/x - Step 3: Cross multiply
122,407.36x = 183,619.94 × 51,258.44 - Step 4: Simplify right side
122,407.36x = 9,412,071,677.29 - Step 5: Solve for x
x = 9,412,071,677.29/122,407.36 - Step 6: Final answer
x = 76,891.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.