Finding the Fourth Proportional to 116,645.58, 161,048.36 and 89,740.62
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Solution
The fourth proportional to 116,645.58, 161,048.36 and 89,740.62 is: 123,901.65
Step by Step Solution
- Step 1: Write the proportion equation
116,645.58 : 161,048.36 = 89,740.62 : x - Step 2: Convert to fraction form
116,645.58/161,048.36 = 89,740.62/x - Step 3: Cross multiply
116,645.58x = 161,048.36 × 89,740.62 - Step 4: Simplify right side
116,645.58x = 14,452,579,676.38 - Step 5: Solve for x
x = 14,452,579,676.38/116,645.58 - Step 6: Final answer
x = 123,901.65
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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.