Finding the Fourth Proportional to 127,804.56, 176,370.99 and 74,121.40
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Solution
The fourth proportional to 127,804.56, 176,370.99 and 74,121.40 is: 102,287.94
Step by Step Solution
- Step 1: Write the proportion equation
127,804.56 : 176,370.99 = 74,121.40 : x - Step 2: Convert to fraction form
127,804.56/176,370.99 = 74,121.40/x - Step 3: Cross multiply
127,804.56x = 176,370.99 × 74,121.40 - Step 4: Simplify right side
127,804.56x = 13,072,865,139.11 - Step 5: Solve for x
x = 13,072,865,139.11/127,804.56 - Step 6: Final answer
x = 102,287.94
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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.