Finding the Fourth Proportional to 141,773.20, 195,646.90 and 78,110.99
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Solution
The fourth proportional to 141,773.20, 195,646.90 and 78,110.99 is: 107,793.10
Step by Step Solution
- Step 1: Write the proportion equation
141,773.20 : 195,646.90 = 78,110.99 : x - Step 2: Convert to fraction form
141,773.20/195,646.90 = 78,110.99/x - Step 3: Cross multiply
141,773.20x = 195,646.90 × 78,110.99 - Step 4: Simplify right side
141,773.20x = 15,282,173,049.43 - Step 5: Solve for x
x = 15,282,173,049.43/141,773.20 - Step 6: Final answer
x = 107,793.10
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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.