Finding the Fourth Proportional to 134,245.60, 201,357.86 and 78,049.88
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Solution
The fourth proportional to 134,245.60, 201,357.86 and 78,049.88 is: 117,068.69
Step by Step Solution
- Step 1: Write the proportion equation
134,245.60 : 201,357.86 = 78,049.88 : x - Step 2: Convert to fraction form
134,245.60/201,357.86 = 78,049.88/x - Step 3: Cross multiply
134,245.60x = 201,357.86 × 78,049.88 - Step 4: Simplify right side
134,245.60x = 15,715,956,810.06 - Step 5: Solve for x
x = 15,715,956,810.06/134,245.60 - Step 6: Final answer
x = 117,068.69
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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.