Finding the Fourth Proportional to 135,027.34, 186,390.21 and 120,855.58
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Solution
The fourth proportional to 135,027.34, 186,390.21 and 120,855.58 is: 166,827.68
Step by Step Solution
- Step 1: Write the proportion equation
135,027.34 : 186,390.21 = 120,855.58 : x - Step 2: Convert to fraction form
135,027.34/186,390.21 = 120,855.58/x - Step 3: Cross multiply
135,027.34x = 186,390.21 × 120,855.58 - Step 4: Simplify right side
135,027.34x = 22,526,296,923.10 - Step 5: Solve for x
x = 22,526,296,923.10/135,027.34 - Step 6: Final answer
x = 166,827.68
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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.