Finding the Fourth Proportional to 120,748.24, 180,886.73 and 79,068.88
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Solution
The fourth proportional to 120,748.24, 180,886.73 and 79,068.88 is: 118,449.02
Step by Step Solution
- Step 1: Write the proportion equation
120,748.24 : 180,886.73 = 79,068.88 : x - Step 2: Convert to fraction form
120,748.24/180,886.73 = 79,068.88/x - Step 3: Cross multiply
120,748.24x = 180,886.73 × 79,068.88 - Step 4: Simplify right side
120,748.24x = 14,302,510,243.53 - Step 5: Solve for x
x = 14,302,510,243.53/120,748.24 - Step 6: Final answer
x = 118,449.02
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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.