Finding the Fourth Proportional to 170,912.84, 235,852.42 and 98,310.20
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Solution
The fourth proportional to 170,912.84, 235,852.42 and 98,310.20 is: 135,663.88
Step by Step Solution
- Step 1: Write the proportion equation
170,912.84 : 235,852.42 = 98,310.20 : x - Step 2: Convert to fraction form
170,912.84/235,852.42 = 98,310.20/x - Step 3: Cross multiply
170,912.84x = 235,852.42 × 98,310.20 - Step 4: Simplify right side
170,912.84x = 23,186,698,580.68 - Step 5: Solve for x
x = 23,186,698,580.68/170,912.84 - Step 6: Final answer
x = 135,663.88
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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.