Finding the Fourth Proportional to 125,139.97, 187,708.39 and 30,370.94
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Solution
The fourth proportional to 125,139.97, 187,708.39 and 30,370.94 is: 45,556.03
Step by Step Solution
- Step 1: Write the proportion equation
125,139.97 : 187,708.39 = 30,370.94 : x - Step 2: Convert to fraction form
125,139.97/187,708.39 = 30,370.94/x - Step 3: Cross multiply
125,139.97x = 187,708.39 × 30,370.94 - Step 4: Simplify right side
125,139.97x = 5,700,880,250.19 - Step 5: Solve for x
x = 5,700,880,250.19/125,139.97 - Step 6: Final answer
x = 45,556.03
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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.