Finding the Fourth Proportional to 103,184.58, 154,777.08 and 28,305.75
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Solution
The fourth proportional to 103,184.58, 154,777.08 and 28,305.75 is: 42,458.69
Step by Step Solution
- Step 1: Write the proportion equation
103,184.58 : 154,777.08 = 28,305.75 : x - Step 2: Convert to fraction form
103,184.58/154,777.08 = 28,305.75/x - Step 3: Cross multiply
103,184.58x = 154,777.08 × 28,305.75 - Step 4: Simplify right side
103,184.58x = 4,381,081,859.55 - Step 5: Solve for x
x = 4,381,081,859.55/103,184.58 - Step 6: Final answer
x = 42,458.69
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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.