Finding the Fourth Proportional to 84,129.10, 126,190.92 and 34,195.80
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Solution
The fourth proportional to 84,129.10, 126,190.92 and 34,195.80 is: 51,292.59
Step by Step Solution
- Step 1: Write the proportion equation
84,129.10 : 126,190.92 = 34,195.80 : x - Step 2: Convert to fraction form
84,129.10/126,190.92 = 34,195.80/x - Step 3: Cross multiply
84,129.10x = 126,190.92 × 34,195.80 - Step 4: Simplify right side
84,129.10x = 4,315,199,462.14 - Step 5: Solve for x
x = 4,315,199,462.14/84,129.10 - Step 6: Final answer
x = 51,292.59
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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.