Finding the Fourth Proportional to 142,129.77, 212,961.36 and 48,584.49
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Solution
The fourth proportional to 142,129.77, 212,961.36 and 48,584.49 is: 72,796.99
Step by Step Solution
- Step 1: Write the proportion equation
142,129.77 : 212,961.36 = 48,584.49 : x - Step 2: Convert to fraction form
142,129.77/212,961.36 = 48,584.49/x - Step 3: Cross multiply
142,129.77x = 212,961.36 × 48,584.49 - Step 4: Simplify right side
142,129.77x = 10,346,619,065.31 - Step 5: Solve for x
x = 10,346,619,065.31/142,129.77 - Step 6: Final answer
x = 72,796.99
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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.