Finding the Fourth Proportional to 122,474.46, 183,782.58 and 51,390.75
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Solution
The fourth proportional to 122,474.46, 183,782.58 and 51,390.75 is: 77,115.87
Step by Step Solution
- Step 1: Write the proportion equation
122,474.46 : 183,782.58 = 51,390.75 : x - Step 2: Convert to fraction form
122,474.46/183,782.58 = 51,390.75/x - Step 3: Cross multiply
122,474.46x = 183,782.58 × 51,390.75 - Step 4: Simplify right side
122,474.46x = 9,444,724,623.14 - Step 5: Solve for x
x = 9,444,724,623.14/122,474.46 - Step 6: Final answer
x = 77,115.87
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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.