Finding the Fourth Proportional to 127,153.30, 190,764.36 and 38,409.70
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Solution
The fourth proportional to 127,153.30, 190,764.36 and 38,409.70 is: 57,624.94
Step by Step Solution
- Step 1: Write the proportion equation
127,153.30 : 190,764.36 = 38,409.70 : x - Step 2: Convert to fraction form
127,153.30/190,764.36 = 38,409.70/x - Step 3: Cross multiply
127,153.30x = 190,764.36 × 38,409.70 - Step 4: Simplify right side
127,153.30x = 7,327,201,838.29 - Step 5: Solve for x
x = 7,327,201,838.29/127,153.30 - 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.