Finding the Fourth Proportional to 154,585.44, 213,327.60 and 87,523.68
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Solution
The fourth proportional to 154,585.44, 213,327.60 and 87,523.68 is: 120,782.50
Step by Step Solution
- Step 1: Write the proportion equation
154,585.44 : 213,327.60 = 87,523.68 : x - Step 2: Convert to fraction form
154,585.44/213,327.60 = 87,523.68/x - Step 3: Cross multiply
154,585.44x = 213,327.60 × 87,523.68 - Step 4: Simplify right side
154,585.44x = 18,671,216,597.57 - Step 5: Solve for x
x = 18,671,216,597.57/154,585.44 - Step 6: Final answer
x = 120,782.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.