Finding the Fourth Proportional to 126,369.21, 189,550.16 and 51,470.83
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Solution
The fourth proportional to 126,369.21, 189,550.16 and 51,470.83 is: 77,204.75
Step by Step Solution
- Step 1: Write the proportion equation
126,369.21 : 189,550.16 = 51,470.83 : x - Step 2: Convert to fraction form
126,369.21/189,550.16 = 51,470.83/x - Step 3: Cross multiply
126,369.21x = 189,550.16 × 51,470.83 - Step 4: Simplify right side
126,369.21x = 9,756,302,856.73 - Step 5: Solve for x
x = 9,756,302,856.73/126,369.21 - Step 6: Final answer
x = 77,204.75
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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.