Finding the Fourth Proportional to 123,611.08, 170,586.90 and 69,894.96
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Solution
The fourth proportional to 123,611.08, 170,586.90 and 69,894.96 is: 96,457.09
Step by Step Solution
- Step 1: Write the proportion equation
123,611.08 : 170,586.90 = 69,894.96 : x - Step 2: Convert to fraction form
123,611.08/170,586.90 = 69,894.96/x - Step 3: Cross multiply
123,611.08x = 170,586.90 × 69,894.96 - Step 4: Simplify right side
123,611.08x = 11,923,164,552.02 - Step 5: Solve for x
x = 11,923,164,552.02/123,611.08 - Step 6: Final answer
x = 96,457.09
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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.