Finding the Fourth Proportional to 136,538.65, 188,400.49 and 76,096.05
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Solution
The fourth proportional to 136,538.65, 188,400.49 and 76,096.05 is: 104,999.82
Step by Step Solution
- Step 1: Write the proportion equation
136,538.65 : 188,400.49 = 76,096.05 : x - Step 2: Convert to fraction form
136,538.65/188,400.49 = 76,096.05/x - Step 3: Cross multiply
136,538.65x = 188,400.49 × 76,096.05 - Step 4: Simplify right side
136,538.65x = 14,336,533,107.06 - Step 5: Solve for x
x = 14,336,533,107.06/136,538.65 - Step 6: Final answer
x = 104,999.82
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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.