Finding the Fourth Proportional to 126,501.74, 189,779.93 and 47,615.73
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Solution
The fourth proportional to 126,501.74, 189,779.93 and 47,615.73 is: 71,433.88
Step by Step Solution
- Step 1: Write the proportion equation
126,501.74 : 189,779.93 = 47,615.73 : x - Step 2: Convert to fraction form
126,501.74/189,779.93 = 47,615.73/x - Step 3: Cross multiply
126,501.74x = 189,779.93 × 47,615.73 - Step 4: Simplify right side
126,501.74x = 9,036,509,668.22 - Step 5: Solve for x
x = 9,036,509,668.22/126,501.74 - Step 6: Final answer
x = 71,433.88
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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.