Finding the Fourth Proportional to 126,959.20, 190,439.44 and 38,212.08
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Solution
The fourth proportional to 126,959.20, 190,439.44 and 38,212.08 is: 57,318.31
Step by Step Solution
- Step 1: Write the proportion equation
126,959.20 : 190,439.44 = 38,212.08 : x - Step 2: Convert to fraction form
126,959.20/190,439.44 = 38,212.08/x - Step 3: Cross multiply
126,959.20x = 190,439.44 × 38,212.08 - Step 4: Simplify right side
126,959.20x = 7,277,087,116.44 - Step 5: Solve for x
x = 7,277,087,116.44/126,959.20 - Step 6: Final answer
x = 57,318.31
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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.