Finding the Fourth Proportional to 125,317.44, 172,940.76 and 68,728.68
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Solution
The fourth proportional to 125,317.44, 172,940.76 and 68,728.68 is: 94,847.06
Step by Step Solution
- Step 1: Write the proportion equation
125,317.44 : 172,940.76 = 68,728.68 : x - Step 2: Convert to fraction form
125,317.44/172,940.76 = 68,728.68/x - Step 3: Cross multiply
125,317.44x = 172,940.76 × 68,728.68 - Step 4: Simplify right side
125,317.44x = 11,885,990,153.00 - Step 5: Solve for x
x = 11,885,990,153.00/125,317.44 - Step 6: Final answer
x = 94,847.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.