Finding the Fourth Proportional to 126,323.96, 189,430.45 and 47,382.84
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Solution
The fourth proportional to 126,323.96, 189,430.45 and 47,382.84 is: 71,053.45
Step by Step Solution
- Step 1: Write the proportion equation
126,323.96 : 189,430.45 = 47,382.84 : x - Step 2: Convert to fraction form
126,323.96/189,430.45 = 47,382.84/x - Step 3: Cross multiply
126,323.96x = 189,430.45 × 47,382.84 - Step 4: Simplify right side
126,323.96x = 8,975,752,585.02 - Step 5: Solve for x
x = 8,975,752,585.02/126,323.96 - Step 6: Final answer
x = 71,053.45
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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.