Finding the Fourth Proportional to 119,837.78, 165,375.68 and 66,122.49
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Solution
The fourth proportional to 119,837.78, 165,375.68 and 66,122.49 is: 91,248.79
Step by Step Solution
- Step 1: Write the proportion equation
119,837.78 : 165,375.68 = 66,122.49 : x - Step 2: Convert to fraction form
119,837.78/165,375.68 = 66,122.49/x - Step 3: Cross multiply
119,837.78x = 165,375.68 × 66,122.49 - Step 4: Simplify right side
119,837.78x = 10,935,052,036.59 - Step 5: Solve for x
x = 10,935,052,036.59/119,837.78 - Step 6: Final answer
x = 91,248.79
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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.