Finding the Fourth Proportional to 135,028.60, 202,542.90 and 127,252.60
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Solution
The fourth proportional to 135,028.60, 202,542.90 and 127,252.60 is: 190,878.90
Step by Step Solution
- Step 1: Write the proportion equation
135,028.60 : 202,542.90 = 127,252.60 : x - Step 2: Convert to fraction form
135,028.60/202,542.90 = 127,252.60/x - Step 3: Cross multiply
135,028.60x = 202,542.90 × 127,252.60 - Step 4: Simplify right side
135,028.60x = 25,774,110,636.54 - Step 5: Solve for x
x = 25,774,110,636.54/135,028.60 - Step 6: Final answer
x = 190,878.90
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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.