Finding the Fourth Proportional to 125,310.78, 187,903.97 and 39,910.50
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Solution
The fourth proportional to 125,310.78, 187,903.97 and 39,910.50 is: 59,845.94
Step by Step Solution
- Step 1: Write the proportion equation
125,310.78 : 187,903.97 = 39,910.50 : x - Step 2: Convert to fraction form
125,310.78/187,903.97 = 39,910.50/x - Step 3: Cross multiply
125,310.78x = 187,903.97 × 39,910.50 - Step 4: Simplify right side
125,310.78x = 7,499,341,195.13 - Step 5: Solve for x
x = 7,499,341,195.13/125,310.78 - Step 6: Final answer
x = 59,845.94
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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.