Finding the Fourth Proportional to 120,518.14, 180,789.20 and 44,636.99
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Solution
The fourth proportional to 120,518.14, 180,789.20 and 44,636.99 is: 66,959.93
Step by Step Solution
- Step 1: Write the proportion equation
120,518.14 : 180,789.20 = 44,636.99 : x - Step 2: Convert to fraction form
120,518.14/180,789.20 = 44,636.99/x - Step 3: Cross multiply
120,518.14x = 180,789.20 × 44,636.99 - Step 4: Simplify right side
120,518.14x = 8,069,885,712.51 - Step 5: Solve for x
x = 8,069,885,712.51/120,518.14 - Step 6: Final answer
x = 66,959.93
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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.