Finding the Fourth Proportional to 120,823.44, 166,749.44 and 73,103.08
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Solution
The fourth proportional to 120,823.44, 166,749.44 and 73,103.08 is: 100,890.17
Step by Step Solution
- Step 1: Write the proportion equation
120,823.44 : 166,749.44 = 73,103.08 : x - Step 2: Convert to fraction form
120,823.44/166,749.44 = 73,103.08/x - Step 3: Cross multiply
120,823.44x = 166,749.44 × 73,103.08 - Step 4: Simplify right side
120,823.44x = 12,189,897,652.28 - Step 5: Solve for x
x = 12,189,897,652.28/120,823.44 - Step 6: Final answer
x = 100,890.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.