Finding the Fourth Proportional to 129,867.14, 194,799.68 and 69,923.70
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Solution
The fourth proportional to 129,867.14, 194,799.68 and 69,923.70 is: 104,884.99
Step by Step Solution
- Step 1: Write the proportion equation
129,867.14 : 194,799.68 = 69,923.70 : x - Step 2: Convert to fraction form
129,867.14/194,799.68 = 69,923.70/x - Step 3: Cross multiply
129,867.14x = 194,799.68 × 69,923.70 - Step 4: Simplify right side
129,867.14x = 13,621,114,142.46 - Step 5: Solve for x
x = 13,621,114,142.46/129,867.14 - Step 6: Final answer
x = 104,884.99
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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.