Finding the Fourth Proportional to 120,735.62, 181,029.62 and 57,575.06
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Solution
The fourth proportional to 120,735.62, 181,029.62 and 57,575.06 is: 86,327.39
Step by Step Solution
- Step 1: Write the proportion equation
120,735.62 : 181,029.62 = 57,575.06 : x - Step 2: Convert to fraction form
120,735.62/181,029.62 = 57,575.06/x - Step 3: Cross multiply
120,735.62x = 181,029.62 × 57,575.06 - Step 4: Simplify right side
120,735.62x = 10,422,790,945.40 - Step 5: Solve for x
x = 10,422,790,945.40/120,735.62 - Step 6: Final answer
x = 86,327.39
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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.