Finding the Fourth Proportional to 131,758.56, 197,462.88 and 84,286.08
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Solution
The fourth proportional to 131,758.56, 197,462.88 and 84,286.08 is: 126,317.20
Step by Step Solution
- Step 1: Write the proportion equation
131,758.56 : 197,462.88 = 84,286.08 : x - Step 2: Convert to fraction form
131,758.56/197,462.88 = 84,286.08/x - Step 3: Cross multiply
131,758.56x = 197,462.88 × 84,286.08 - Step 4: Simplify right side
131,758.56x = 16,643,372,100.71 - Step 5: Solve for x
x = 16,643,372,100.71/131,758.56 - Step 6: Final answer
x = 126,317.20
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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.