Finding the Fourth Proportional to 171,556.05, 257,351.18 and 71,747.49
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Solution
The fourth proportional to 171,556.05, 257,351.18 and 71,747.49 is: 107,628.39
Step by Step Solution
- Step 1: Write the proportion equation
171,556.05 : 257,351.18 = 71,747.49 : x - Step 2: Convert to fraction form
171,556.05/257,351.18 = 71,747.49/x - Step 3: Cross multiply
171,556.05x = 257,351.18 × 71,747.49 - Step 4: Simplify right side
171,556.05x = 18,464,300,854.80 - Step 5: Solve for x
x = 18,464,300,854.80/171,556.05 - Step 6: Final answer
x = 107,628.39
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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.