Finding the Fourth Proportional to 122,438.73, 183,729.01 and 51,355.05
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Solution
The fourth proportional to 122,438.73, 183,729.01 and 51,355.05 is: 77,062.32
Step by Step Solution
- Step 1: Write the proportion equation
122,438.73 : 183,729.01 = 51,355.05 : x - Step 2: Convert to fraction form
122,438.73/183,729.01 = 51,355.05/x - Step 3: Cross multiply
122,438.73x = 183,729.01 × 51,355.05 - Step 4: Simplify right side
122,438.73x = 9,435,412,495.00 - Step 5: Solve for x
x = 9,435,412,495.00/122,438.73 - Step 6: Final answer
x = 77,062.32
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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.