Finding the Fourth Proportional to 140,432.14, 210,701.41 and 84,311.44
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Solution
The fourth proportional to 140,432.14, 210,701.41 and 84,311.44 is: 126,499.10
Step by Step Solution
- Step 1: Write the proportion equation
140,432.14 : 210,701.41 = 84,311.44 : x - Step 2: Convert to fraction form
140,432.14/210,701.41 = 84,311.44/x - Step 3: Cross multiply
140,432.14x = 210,701.41 × 84,311.44 - Step 4: Simplify right side
140,432.14x = 17,764,539,287.13 - Step 5: Solve for x
x = 17,764,539,287.13/140,432.14 - Step 6: Final answer
x = 126,499.10
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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.