Finding the Fourth Proportional to 142,135.20, 213,202.08 and 133,474.08
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Solution
The fourth proportional to 142,135.20, 213,202.08 and 133,474.08 is: 200,210.44
Step by Step Solution
- Step 1: Write the proportion equation
142,135.20 : 213,202.08 = 133,474.08 : x - Step 2: Convert to fraction form
142,135.20/213,202.08 = 133,474.08/x - Step 3: Cross multiply
142,135.20x = 213,202.08 × 133,474.08 - Step 4: Simplify right side
142,135.20x = 28,456,951,482.09 - Step 5: Solve for x
x = 28,456,951,482.09/142,135.20 - Step 6: Final answer
x = 200,210.44
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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.