Finding the Fourth Proportional to 122,847.84, 184,079.79 and 85,480.92
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Solution
The fourth proportional to 122,847.84, 184,079.79 and 85,480.92 is: 128,087.80
Step by Step Solution
- Step 1: Write the proportion equation
122,847.84 : 184,079.79 = 85,480.92 : x - Step 2: Convert to fraction form
122,847.84/184,079.79 = 85,480.92/x - Step 3: Cross multiply
122,847.84x = 184,079.79 × 85,480.92 - Step 4: Simplify right side
122,847.84x = 15,735,309,802.61 - Step 5: Solve for x
x = 15,735,309,802.61/122,847.84 - Step 6: Final answer
x = 128,087.80
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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.