Finding the Fourth Proportional to 127,939.53, 176,499.48 and 74,193.41
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Solution
The fourth proportional to 127,939.53, 176,499.48 and 74,193.41 is: 102,353.80
Step by Step Solution
- Step 1: Write the proportion equation
127,939.53 : 176,499.48 = 74,193.41 : x - Step 2: Convert to fraction form
127,939.53/176,499.48 = 74,193.41/x - Step 3: Cross multiply
127,939.53x = 176,499.48 × 74,193.41 - Step 4: Simplify right side
127,939.53x = 13,095,097,401.93 - Step 5: Solve for x
x = 13,095,097,401.93/127,939.53 - Step 6: Final answer
x = 102,353.80
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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.