Finding the Fourth Proportional to 155,175.75, 214,142.74 and 88,107.75
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Solution
The fourth proportional to 155,175.75, 214,142.74 and 88,107.75 is: 121,588.81
Step by Step Solution
- Step 1: Write the proportion equation
155,175.75 : 214,142.74 = 88,107.75 : x - Step 2: Convert to fraction form
155,175.75/214,142.74 = 88,107.75/x - Step 3: Cross multiply
155,175.75x = 214,142.74 × 88,107.75 - Step 4: Simplify right side
155,175.75x = 18,867,634,779.97 - Step 5: Solve for x
x = 18,867,634,779.97/155,175.75 - Step 6: Final answer
x = 121,588.81
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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.