Finding the Fourth Proportional to 122,815.99, 184,184.79 and 47,917.90
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Solution
The fourth proportional to 122,815.99, 184,184.79 and 47,917.90 is: 71,861.56
Step by Step Solution
- Step 1: Write the proportion equation
122,815.99 : 184,184.79 = 47,917.90 : x - Step 2: Convert to fraction form
122,815.99/184,184.79 = 47,917.90/x - Step 3: Cross multiply
122,815.99x = 184,184.79 × 47,917.90 - Step 4: Simplify right side
122,815.99x = 8,825,748,348.74 - Step 5: Solve for x
x = 8,825,748,348.74/122,815.99 - Step 6: Final answer
x = 71,861.56
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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.