Finding the Fourth Proportional to 141,848.07, 195,729.26 and 81,420.99
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Solution
The fourth proportional to 141,848.07, 195,729.26 and 81,420.99 is: 112,348.87
Step by Step Solution
- Step 1: Write the proportion equation
141,848.07 : 195,729.26 = 81,420.99 : x - Step 2: Convert to fraction form
141,848.07/195,729.26 = 81,420.99/x - Step 3: Cross multiply
141,848.07x = 195,729.26 × 81,420.99 - Step 4: Simplify right side
141,848.07x = 15,936,469,714.06 - Step 5: Solve for x
x = 15,936,469,714.06/141,848.07 - Step 6: Final answer
x = 112,348.87
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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.