Finding the Fourth Proportional to 106,128.14, 146,454.45 and 58,380.44
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Solution
The fourth proportional to 106,128.14, 146,454.45 and 58,380.44 is: 80,563.70
Step by Step Solution
- Step 1: Write the proportion equation
106,128.14 : 146,454.45 = 58,380.44 : x - Step 2: Convert to fraction form
106,128.14/146,454.45 = 58,380.44/x - Step 3: Cross multiply
106,128.14x = 146,454.45 × 58,380.44 - Step 4: Simplify right side
106,128.14x = 8,550,075,230.96 - Step 5: Solve for x
x = 8,550,075,230.96/106,128.14 - Step 6: Final answer
x = 80,563.70
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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.