Finding the Fourth Proportional to 123,204.24, 170,021.03 and 69,489.70
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Solution
The fourth proportional to 123,204.24, 170,021.03 and 69,489.70 is: 95,895.32
Step by Step Solution
- Step 1: Write the proportion equation
123,204.24 : 170,021.03 = 69,489.70 : x - Step 2: Convert to fraction form
123,204.24/170,021.03 = 69,489.70/x - Step 3: Cross multiply
123,204.24x = 170,021.03 × 69,489.70 - Step 4: Simplify right side
123,204.24x = 11,814,709,595.89 - Step 5: Solve for x
x = 11,814,709,595.89/123,204.24 - Step 6: Final answer
x = 95,895.32
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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.