Finding the Fourth Proportional to 125,394.30, 188,144.21 and 78,048.99
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Solution
The fourth proportional to 125,394.30, 188,144.21 and 78,048.99 is: 117,106.33
Step by Step Solution
- Step 1: Write the proportion equation
125,394.30 : 188,144.21 = 78,048.99 : x - Step 2: Convert to fraction form
125,394.30/188,144.21 = 78,048.99/x - Step 3: Cross multiply
125,394.30x = 188,144.21 × 78,048.99 - Step 4: Simplify right side
125,394.30x = 14,684,465,759.97 - Step 5: Solve for x
x = 14,684,465,759.97/125,394.30 - Step 6: Final answer
x = 117,106.33
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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.