Finding the Fourth Proportional to 126,472.28, 174,531.77 and 69,883.65
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Solution
The fourth proportional to 126,472.28, 174,531.77 and 69,883.65 is: 96,439.45
Step by Step Solution
- Step 1: Write the proportion equation
126,472.28 : 174,531.77 = 69,883.65 : x - Step 2: Convert to fraction form
126,472.28/174,531.77 = 69,883.65/x - Step 3: Cross multiply
126,472.28x = 174,531.77 × 69,883.65 - Step 4: Simplify right side
126,472.28x = 12,196,916,779.14 - Step 5: Solve for x
x = 12,196,916,779.14/126,472.28 - Step 6: Final answer
x = 96,439.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.