Finding the Fourth Proportional to 162,855.64, 243,922.56 and 125,138.08
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Solution
The fourth proportional to 162,855.64, 243,922.56 and 125,138.08 is: 187,429.80
Step by Step Solution
- Step 1: Write the proportion equation
162,855.64 : 243,922.56 = 125,138.08 : x - Step 2: Convert to fraction form
162,855.64/243,922.56 = 125,138.08/x - Step 3: Cross multiply
162,855.64x = 243,922.56 × 125,138.08 - Step 4: Simplify right side
162,855.64x = 30,524,000,827.08 - Step 5: Solve for x
x = 30,524,000,827.08/162,855.64 - Step 6: Final answer
x = 187,429.80
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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.