Finding the Fourth Proportional to 141,404.09, 195,138.36 and 77,745.98
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Solution
The fourth proportional to 141,404.09, 195,138.36 and 77,745.98 is: 107,289.84
Step by Step Solution
- Step 1: Write the proportion equation
141,404.09 : 195,138.36 = 77,745.98 : x - Step 2: Convert to fraction form
141,404.09/195,138.36 = 77,745.98/x - Step 3: Cross multiply
141,404.09x = 195,138.36 × 77,745.98 - Step 4: Simplify right side
141,404.09x = 15,171,222,058.10 - Step 5: Solve for x
x = 15,171,222,058.10/141,404.09 - Step 6: Final answer
x = 107,289.84
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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.