Finding the Fourth Proportional to 172,857.33, 259,294.21 and 84,004.99
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Solution
The fourth proportional to 172,857.33, 259,294.21 and 84,004.99 is: 126,011.47
Step by Step Solution
- Step 1: Write the proportion equation
172,857.33 : 259,294.21 = 84,004.99 : x - Step 2: Convert to fraction form
172,857.33/259,294.21 = 84,004.99/x - Step 3: Cross multiply
172,857.33x = 259,294.21 × 84,004.99 - Step 4: Simplify right side
172,857.33x = 21,782,006,659.86 - Step 5: Solve for x
x = 21,782,006,659.86/172,857.33 - Step 6: Final answer
x = 126,011.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.