Finding the Fourth Proportional to 120,495.22, 166,290.80 and 69,507.05
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Solution
The fourth proportional to 120,495.22, 166,290.80 and 69,507.05 is: 95,923.99
Step by Step Solution
- Step 1: Write the proportion equation
120,495.22 : 166,290.80 = 69,507.05 : x - Step 2: Convert to fraction form
120,495.22/166,290.80 = 69,507.05/x - Step 3: Cross multiply
120,495.22x = 166,290.80 × 69,507.05 - Step 4: Simplify right side
120,495.22x = 11,558,381,771.15 - Step 5: Solve for x
x = 11,558,381,771.15/120,495.22 - Step 6: Final answer
x = 95,923.99
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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.