Finding the Fourth Proportional to 141,879.12, 212,818.68 and 48,385.68
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Solution
The fourth proportional to 141,879.12, 212,818.68 and 48,385.68 is: 72,578.52
Step by Step Solution
- Step 1: Write the proportion equation
141,879.12 : 212,818.68 = 48,385.68 : x - Step 2: Convert to fraction form
141,879.12/212,818.68 = 48,385.68/x - Step 3: Cross multiply
141,879.12x = 212,818.68 × 48,385.68 - Step 4: Simplify right side
141,879.12x = 10,297,376,548.50 - Step 5: Solve for x
x = 10,297,376,548.50/141,879.12 - Step 6: Final answer
x = 72,578.52
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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.