Finding the Fourth Proportional to 141,455.52, 195,201.36 and 77,791.68
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Solution
The fourth proportional to 141,455.52, 195,201.36 and 77,791.68 is: 107,348.53
Step by Step Solution
- Step 1: Write the proportion equation
141,455.52 : 195,201.36 = 77,791.68 : x - Step 2: Convert to fraction form
141,455.52/195,201.36 = 77,791.68/x - Step 3: Cross multiply
141,455.52x = 195,201.36 × 77,791.68 - Step 4: Simplify right side
141,455.52x = 15,185,041,732.68 - Step 5: Solve for x
x = 15,185,041,732.68/141,455.52 - Step 6: Final answer
x = 107,348.53
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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.