Finding the Fourth Proportional to 122,406.36, 183,618.44 and 51,257.44
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Solution
The fourth proportional to 122,406.36, 183,618.44 and 51,257.44 is: 76,889.89
Step by Step Solution
- Step 1: Write the proportion equation
122,406.36 : 183,618.44 = 51,257.44 : x - Step 2: Convert to fraction form
122,406.36/183,618.44 = 51,257.44/x - Step 3: Cross multiply
122,406.36x = 183,618.44 × 51,257.44 - Step 4: Simplify right side
122,406.36x = 9,411,811,171.19 - Step 5: Solve for x
x = 9,411,811,171.19/122,406.36 - Step 6: Final answer
x = 76,889.89
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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.