Finding the Fourth Proportional to 140,127.93, 193,381.97 and 79,704.09
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Solution
The fourth proportional to 140,127.93, 193,381.97 and 79,704.09 is: 109,994.73
Step by Step Solution
- Step 1: Write the proportion equation
140,127.93 : 193,381.97 = 79,704.09 : x - Step 2: Convert to fraction form
140,127.93/193,381.97 = 79,704.09/x - Step 3: Cross multiply
140,127.93x = 193,381.97 × 79,704.09 - Step 4: Simplify right side
140,127.93x = 15,413,333,542.74 - Step 5: Solve for x
x = 15,413,333,542.74/140,127.93 - Step 6: Final answer
x = 109,994.73
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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.