Finding the Fourth Proportional to 193,781.12, 267,440.09 and 107,748.68
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Solution
The fourth proportional to 193,781.12, 267,440.09 and 107,748.68 is: 148,705.49
Step by Step Solution
- Step 1: Write the proportion equation
193,781.12 : 267,440.09 = 107,748.68 : x - Step 2: Convert to fraction form
193,781.12/267,440.09 = 107,748.68/x - Step 3: Cross multiply
193,781.12x = 267,440.09 × 107,748.68 - Step 4: Simplify right side
193,781.12x = 28,816,314,800.64 - Step 5: Solve for x
x = 28,816,314,800.64/193,781.12 - Step 6: Final answer
x = 148,705.49
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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.