Finding the Fourth Proportional to 126,515.49, 189,619.79 and 92,924.08
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Solution
The fourth proportional to 126,515.49, 189,619.79 and 92,924.08 is: 139,273.42
Step by Step Solution
- Step 1: Write the proportion equation
126,515.49 : 189,619.79 = 92,924.08 : x - Step 2: Convert to fraction form
126,515.49/189,619.79 = 92,924.08/x - Step 3: Cross multiply
126,515.49x = 189,619.79 × 92,924.08 - Step 4: Simplify right side
126,515.49x = 17,620,244,535.54 - Step 5: Solve for x
x = 17,620,244,535.54/126,515.49 - Step 6: Final answer
x = 139,273.42
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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.