Finding the Fourth Proportional to 142,518.62, 196,589.99 and 94,120.99
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Solution
The fourth proportional to 142,518.62, 196,589.99 and 94,120.99 is: 129,830.37
Step by Step Solution
- Step 1: Write the proportion equation
142,518.62 : 196,589.99 = 94,120.99 : x - Step 2: Convert to fraction form
142,518.62/196,589.99 = 94,120.99/x - Step 3: Cross multiply
142,518.62x = 196,589.99 × 94,120.99 - Step 4: Simplify right side
142,518.62x = 18,503,244,482.89 - Step 5: Solve for x
x = 18,503,244,482.89/142,518.62 - Step 6: Final answer
x = 129,830.37
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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.