Finding the Fourth Proportional to 119,814.75, 165,344.36 and 66,822.75
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Solution
The fourth proportional to 119,814.75, 165,344.36 and 66,822.75 is: 92,215.40
Step by Step Solution
- Step 1: Write the proportion equation
119,814.75 : 165,344.36 = 66,822.75 : x - Step 2: Convert to fraction form
119,814.75/165,344.36 = 66,822.75/x - Step 3: Cross multiply
119,814.75x = 165,344.36 × 66,822.75 - Step 4: Simplify right side
119,814.75x = 11,048,764,498.08 - Step 5: Solve for x
x = 11,048,764,498.08/119,814.75 - Step 6: Final answer
x = 92,215.40
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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.