Finding the Fourth Proportional to 99,381.44, 149,020.80 and 29,251.68
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Solution
The fourth proportional to 99,381.44, 149,020.80 and 29,251.68 is: 43,862.40
Step by Step Solution
- Step 1: Write the proportion equation
99,381.44 : 149,020.80 = 29,251.68 : x - Step 2: Convert to fraction form
99,381.44/149,020.80 = 29,251.68/x - Step 3: Cross multiply
99,381.44x = 149,020.80 × 29,251.68 - Step 4: Simplify right side
99,381.44x = 4,359,108,754.94 - Step 5: Solve for x
x = 4,359,108,754.94/99,381.44 - Step 6: Final answer
x = 43,862.40
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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.