Finding the Fourth Proportional to 101,608.06, 140,224.07 and 61,321.09
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Solution
The fourth proportional to 101,608.06, 140,224.07 and 61,321.09 is: 84,626.09
Step by Step Solution
- Step 1: Write the proportion equation
101,608.06 : 140,224.07 = 61,321.09 : x - Step 2: Convert to fraction form
101,608.06/140,224.07 = 61,321.09/x - Step 3: Cross multiply
101,608.06x = 140,224.07 × 61,321.09 - Step 4: Simplify right side
101,608.06x = 8,598,692,619.38 - Step 5: Solve for x
x = 8,598,692,619.38/101,608.06 - Step 6: Final answer
x = 84,626.09
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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.