Finding the Fourth Proportional to 126,201.20, 189,246.33 and 47,260.06
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Solution
The fourth proportional to 126,201.20, 189,246.33 and 47,260.06 is: 70,869.32
Step by Step Solution
- Step 1: Write the proportion equation
126,201.20 : 189,246.33 = 47,260.06 : x - Step 2: Convert to fraction form
126,201.20/189,246.33 = 47,260.06/x - Step 3: Cross multiply
126,201.20x = 189,246.33 × 47,260.06 - Step 4: Simplify right side
126,201.20x = 8,943,792,437.46 - Step 5: Solve for x
x = 8,943,792,437.46/126,201.20 - Step 6: Final answer
x = 70,869.32
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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.