Finding the Fourth Proportional to 149,119.47, 223,651.42 and 47,919.28
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Solution
The fourth proportional to 149,119.47, 223,651.42 and 47,919.28 is: 71,869.99
Step by Step Solution
- Step 1: Write the proportion equation
149,119.47 : 223,651.42 = 47,919.28 : x - Step 2: Convert to fraction form
149,119.47/223,651.42 = 47,919.28/x - Step 3: Cross multiply
149,119.47x = 223,651.42 × 47,919.28 - Step 4: Simplify right side
149,119.47x = 10,717,215,017.38 - Step 5: Solve for x
x = 10,717,215,017.38/149,119.47 - Step 6: Final answer
x = 71,869.99
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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.