Finding the Fourth Proportional to 119,890.06, 165,448.30 and 66,175.09
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Solution
The fourth proportional to 119,890.06, 165,448.30 and 66,175.09 is: 91,321.63
Step by Step Solution
- Step 1: Write the proportion equation
119,890.06 : 165,448.30 = 66,175.09 : x - Step 2: Convert to fraction form
119,890.06/165,448.30 = 66,175.09/x - Step 3: Cross multiply
119,890.06x = 165,448.30 × 66,175.09 - Step 4: Simplify right side
119,890.06x = 10,948,555,563.79 - Step 5: Solve for x
x = 10,948,555,563.79/119,890.06 - Step 6: Final answer
x = 91,321.63
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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.