Finding the Fourth Proportional to 141,908.80, 195,842.94 and 78,246.48
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Solution
The fourth proportional to 141,908.80, 195,842.94 and 78,246.48 is: 107,984.99
Step by Step Solution
- Step 1: Write the proportion equation
141,908.80 : 195,842.94 = 78,246.48 : x - Step 2: Convert to fraction form
141,908.80/195,842.94 = 78,246.48/x - Step 3: Cross multiply
141,908.80x = 195,842.94 × 78,246.48 - Step 4: Simplify right side
141,908.80x = 15,324,020,687.85 - Step 5: Solve for x
x = 15,324,020,687.85/141,908.80 - Step 6: Final answer
x = 107,984.99
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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.