Finding the Fourth Proportional to 119,837.12, 165,375.81 and 66,122.19
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Solution
The fourth proportional to 119,837.12, 165,375.81 and 66,122.19 is: 91,248.95
Step by Step Solution
- Step 1: Write the proportion equation
119,837.12 : 165,375.81 = 66,122.19 : x - Step 2: Convert to fraction form
119,837.12/165,375.81 = 66,122.19/x - Step 3: Cross multiply
119,837.12x = 165,375.81 × 66,122.19 - Step 4: Simplify right side
119,837.12x = 10,935,010,730.22 - Step 5: Solve for x
x = 10,935,010,730.22/119,837.12 - Step 6: Final answer
x = 91,248.95
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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.