Finding the Fourth Proportional to 141,825.24, 195,714.99 and 78,163.02
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Solution
The fourth proportional to 141,825.24, 195,714.99 and 78,163.02 is: 107,862.85
Step by Step Solution
- Step 1: Write the proportion equation
141,825.24 : 195,714.99 = 78,163.02 : x - Step 2: Convert to fraction form
141,825.24/195,714.99 = 78,163.02/x - Step 3: Cross multiply
141,825.24x = 195,714.99 × 78,163.02 - Step 4: Simplify right side
141,825.24x = 15,297,674,677.67 - Step 5: Solve for x
x = 15,297,674,677.67/141,825.24 - Step 6: Final answer
x = 107,862.85
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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.