Finding the Fourth Proportional to 127,161.99, 190,744.80 and 38,416.26
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Solution
The fourth proportional to 127,161.99, 190,744.80 and 38,416.26 is: 57,624.94
Step by Step Solution
- Step 1: Write the proportion equation
127,161.99 : 190,744.80 = 38,416.26 : x - Step 2: Convert to fraction form
127,161.99/190,744.80 = 38,416.26/x - Step 3: Cross multiply
127,161.99x = 190,744.80 × 38,416.26 - Step 4: Simplify right side
127,161.99x = 7,327,701,830.45 - Step 5: Solve for x
x = 7,327,701,830.45/127,161.99 - Step 6: Final answer
x = 57,624.94
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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.