Finding the Fourth Proportional to 142,186.38, 213,341.83 and 67,359.99
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Solution
The fourth proportional to 142,186.38, 213,341.83 and 67,359.99 is: 101,069.48
Step by Step Solution
- Step 1: Write the proportion equation
142,186.38 : 213,341.83 = 67,359.99 : x - Step 2: Convert to fraction form
142,186.38/213,341.83 = 67,359.99/x - Step 3: Cross multiply
142,186.38x = 213,341.83 × 67,359.99 - Step 4: Simplify right side
142,186.38x = 14,370,703,535.38 - Step 5: Solve for x
x = 14,370,703,535.38/142,186.38 - Step 6: Final answer
x = 101,069.48
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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.