Finding the Fourth Proportional to 137,923.70, 206,885.55 and 54,817.70
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Solution
The fourth proportional to 137,923.70, 206,885.55 and 54,817.70 is: 82,226.55
Step by Step Solution
- Step 1: Write the proportion equation
137,923.70 : 206,885.55 = 54,817.70 : x - Step 2: Convert to fraction form
137,923.70/206,885.55 = 54,817.70/x - Step 3: Cross multiply
137,923.70x = 206,885.55 × 54,817.70 - Step 4: Simplify right side
137,923.70x = 11,340,990,014.24 - Step 5: Solve for x
x = 11,340,990,014.24/137,923.70 - Step 6: Final answer
x = 82,226.55
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1.5x scale
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.