Finding the Fourth Proportional to 117,286.98, 161,852.09 and 69,511.96
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Solution
The fourth proportional to 117,286.98, 161,852.09 and 69,511.96 is: 95,924.17
Step by Step Solution
- Step 1: Write the proportion equation
117,286.98 : 161,852.09 = 69,511.96 : x - Step 2: Convert to fraction form
117,286.98/161,852.09 = 69,511.96/x - Step 3: Cross multiply
117,286.98x = 161,852.09 × 69,511.96 - Step 4: Simplify right side
117,286.98x = 11,250,656,251.76 - Step 5: Solve for x
x = 11,250,656,251.76/117,286.98 - Step 6: Final answer
x = 95,924.17
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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.