Finding the Fourth Proportional to 121,753.38, 182,671.08 and 76,722.44
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Solution
The fourth proportional to 121,753.38, 182,671.08 and 76,722.44 is: 115,109.50
Step by Step Solution
- Step 1: Write the proportion equation
121,753.38 : 182,671.08 = 76,722.44 : x - Step 2: Convert to fraction form
121,753.38/182,671.08 = 76,722.44/x - Step 3: Cross multiply
121,753.38x = 182,671.08 × 76,722.44 - Step 4: Simplify right side
121,753.38x = 14,014,970,975.04 - Step 5: Solve for x
x = 14,014,970,975.04/121,753.38 - Step 6: Final answer
x = 115,109.50
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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.