Finding the Fourth Proportional to 113,428.10, 170,029.46 and 54,194.63
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Solution
The fourth proportional to 113,428.10, 170,029.46 and 54,194.63 is: 81,238.09
Step by Step Solution
- Step 1: Write the proportion equation
113,428.10 : 170,029.46 = 54,194.63 : x - Step 2: Convert to fraction form
113,428.10/170,029.46 = 54,194.63/x - Step 3: Cross multiply
113,428.10x = 170,029.46 × 54,194.63 - Step 4: Simplify right side
113,428.10x = 9,214,682,959.14 - Step 5: Solve for x
x = 9,214,682,959.14/113,428.10 - Step 6: Final answer
x = 81,238.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.