Finding the Fourth Proportional to 159,101.21, 219,553.99 and 87,480.61
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Solution
The fourth proportional to 159,101.21, 219,553.99 and 87,480.61 is: 120,720.12
Step by Step Solution
- Step 1: Write the proportion equation
159,101.21 : 219,553.99 = 87,480.61 : x - Step 2: Convert to fraction form
159,101.21/219,553.99 = 87,480.61/x - Step 3: Cross multiply
159,101.21x = 219,553.99 × 87,480.61 - Step 4: Simplify right side
159,101.21x = 19,206,716,697.63 - Step 5: Solve for x
x = 19,206,716,697.63/159,101.21 - Step 6: Final answer
x = 120,720.12
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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.