Finding the Fourth Proportional to 122,845.09, 184,157.94 and 47,947.74
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Solution
The fourth proportional to 122,845.09, 184,157.94 and 47,947.74 is: 71,878.79
Step by Step Solution
- Step 1: Write the proportion equation
122,845.09 : 184,157.94 = 47,947.74 : x - Step 2: Convert to fraction form
122,845.09/184,157.94 = 47,947.74/x - Step 3: Cross multiply
122,845.09x = 184,157.94 × 47,947.74 - Step 4: Simplify right side
122,845.09x = 8,829,957,026.06 - Step 5: Solve for x
x = 8,829,957,026.06/122,845.09 - Step 6: Final answer
x = 71,878.79
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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.