Finding the Fourth Proportional to 120,544.29, 180,714.33 and 73,698.75
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Solution
The fourth proportional to 120,544.29, 180,714.33 and 73,698.75 is: 110,485.70
Step by Step Solution
- Step 1: Write the proportion equation
120,544.29 : 180,714.33 = 73,698.75 : x - Step 2: Convert to fraction form
120,544.29/180,714.33 = 73,698.75/x - Step 3: Cross multiply
120,544.29x = 180,714.33 × 73,698.75 - Step 4: Simplify right side
120,544.29x = 13,318,420,228.09 - Step 5: Solve for x
x = 13,318,420,228.09/120,544.29 - Step 6: Final answer
x = 110,485.70
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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.