Finding the Fourth Proportional to 99,890.20, 149,814.78 and 29,750.68
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Solution
The fourth proportional to 99,890.20, 149,814.78 and 29,750.68 is: 44,619.91
Step by Step Solution
- Step 1: Write the proportion equation
99,890.20 : 149,814.78 = 29,750.68 : x - Step 2: Convert to fraction form
99,890.20/149,814.78 = 29,750.68/x - Step 3: Cross multiply
99,890.20x = 149,814.78 × 29,750.68 - Step 4: Simplify right side
99,890.20x = 4,457,091,579.05 - Step 5: Solve for x
x = 4,457,091,579.05/99,890.20 - Step 6: Final answer
x = 44,619.91
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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.