Finding the Fourth Proportional to 136,249.36, 187,917.60 and 88,518.09
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Solution
The fourth proportional to 136,249.36, 187,917.60 and 88,518.09 is: 122,085.76
Step by Step Solution
- Step 1: Write the proportion equation
136,249.36 : 187,917.60 = 88,518.09 : x - Step 2: Convert to fraction form
136,249.36/187,917.60 = 88,518.09/x - Step 3: Cross multiply
136,249.36x = 187,917.60 × 88,518.09 - Step 4: Simplify right side
136,249.36x = 16,634,107,029.38 - Step 5: Solve for x
x = 16,634,107,029.38/136,249.36 - Step 6: Final answer
x = 122,085.76
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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.