Finding the Fourth Proportional to 136,739.58, 205,131.24 and 57,854.49
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Solution
The fourth proportional to 136,739.58, 205,131.24 and 57,854.49 is: 86,790.99
Step by Step Solution
- Step 1: Write the proportion equation
136,739.58 : 205,131.24 = 57,854.49 : x - Step 2: Convert to fraction form
136,739.58/205,131.24 = 57,854.49/x - Step 3: Cross multiply
136,739.58x = 205,131.24 × 57,854.49 - Step 4: Simplify right side
136,739.58x = 11,867,763,273.27 - Step 5: Solve for x
x = 11,867,763,273.27/136,739.58 - Step 6: Final answer
x = 86,790.99
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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.