Finding the Fourth Proportional to 125,144.05, 172,697.92 and 67,782.08
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Solution
The fourth proportional to 125,144.05, 172,697.92 and 67,782.08 is: 93,538.79
Step by Step Solution
- Step 1: Write the proportion equation
125,144.05 : 172,697.92 = 67,782.08 : x - Step 2: Convert to fraction form
125,144.05/172,697.92 = 67,782.08/x - Step 3: Cross multiply
125,144.05x = 172,697.92 × 67,782.08 - Step 4: Simplify right side
125,144.05x = 11,705,823,365.78 - Step 5: Solve for x
x = 11,705,823,365.78/125,144.05 - Step 6: Final answer
x = 93,538.79
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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.