Finding the Fourth Proportional to 141,214.87, 194,879.91 and 77,554.05
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Solution
The fourth proportional to 141,214.87, 194,879.91 and 77,554.05 is: 107,026.45
Step by Step Solution
- Step 1: Write the proportion equation
141,214.87 : 194,879.91 = 77,554.05 : x - Step 2: Convert to fraction form
141,214.87/194,879.91 = 77,554.05/x - Step 3: Cross multiply
141,214.87x = 194,879.91 × 77,554.05 - Step 4: Simplify right side
141,214.87x = 15,113,726,284.14 - Step 5: Solve for x
x = 15,113,726,284.14/141,214.87 - Step 6: Final answer
x = 107,026.45
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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.