Finding the Fourth Proportional to 170,851.87, 235,735.68 and 99,188.74
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Solution
The fourth proportional to 170,851.87, 235,735.68 and 99,188.74 is: 136,857.30
Step by Step Solution
- Step 1: Write the proportion equation
170,851.87 : 235,735.68 = 99,188.74 : x - Step 2: Convert to fraction form
170,851.87/235,735.68 = 99,188.74/x - Step 3: Cross multiply
170,851.87x = 235,735.68 × 99,188.74 - Step 4: Simplify right side
170,851.87x = 23,382,325,072.24 - Step 5: Solve for x
x = 23,382,325,072.24/170,851.87 - Step 6: Final answer
x = 136,857.30
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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.