Finding the Fourth Proportional to 140,503.20, 193,897.26 and 76,845.09
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Solution
The fourth proportional to 140,503.20, 193,897.26 and 76,845.09 is: 106,047.78
Step by Step Solution
- Step 1: Write the proportion equation
140,503.20 : 193,897.26 = 76,845.09 : x - Step 2: Convert to fraction form
140,503.20/193,897.26 = 76,845.09/x - Step 3: Cross multiply
140,503.20x = 193,897.26 × 76,845.09 - Step 4: Simplify right side
140,503.20x = 14,900,052,395.45 - Step 5: Solve for x
x = 14,900,052,395.45/140,503.20 - Step 6: Final answer
x = 106,047.78
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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.