Finding the Fourth Proportional to 122,438.61, 183,728.81 and 51,354.92
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Solution
The fourth proportional to 122,438.61, 183,728.81 and 51,354.92 is: 77,062.12
Step by Step Solution
- Step 1: Write the proportion equation
122,438.61 : 183,728.81 = 51,354.92 : x - Step 2: Convert to fraction form
122,438.61/183,728.81 = 51,354.92/x - Step 3: Cross multiply
122,438.61x = 183,728.81 × 51,354.92 - Step 4: Simplify right side
122,438.61x = 9,435,378,339.25 - Step 5: Solve for x
x = 9,435,378,339.25/122,438.61 - Step 6: Final answer
x = 77,062.12
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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.