Finding the Fourth Proportional to 140,490.62, 193,877.26 and 79,237.62
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Solution
The fourth proportional to 140,490.62, 193,877.26 and 79,237.62 is: 109,348.03
Step by Step Solution
- Step 1: Write the proportion equation
140,490.62 : 193,877.26 = 79,237.62 : x - Step 2: Convert to fraction form
140,490.62/193,877.26 = 79,237.62/x - Step 3: Cross multiply
140,490.62x = 193,877.26 × 79,237.62 - Step 4: Simplify right side
140,490.62x = 15,362,372,654.52 - Step 5: Solve for x
x = 15,362,372,654.52/140,490.62 - Step 6: Final answer
x = 109,348.03
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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.