Finding the Fourth Proportional to 134,821.20, 202,231.80 and 92,830.80
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Solution
The fourth proportional to 134,821.20, 202,231.80 and 92,830.80 is: 139,246.20
Step by Step Solution
- Step 1: Write the proportion equation
134,821.20 : 202,231.80 = 92,830.80 : x - Step 2: Convert to fraction form
134,821.20/202,231.80 = 92,830.80/x - Step 3: Cross multiply
134,821.20x = 202,231.80 × 92,830.80 - Step 4: Simplify right side
134,821.20x = 18,773,339,779.44 - Step 5: Solve for x
x = 18,773,339,779.44/134,821.20 - Step 6: Final answer
x = 139,246.20
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1.5x scale
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.