Finding the Fourth Proportional to 193,170.68, 289,743.28 and 66,781.52
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Solution
The fourth proportional to 193,170.68, 289,743.28 and 66,781.52 is: 100,167.88
Step by Step Solution
- Step 1: Write the proportion equation
193,170.68 : 289,743.28 = 66,781.52 : x - Step 2: Convert to fraction form
193,170.68/289,743.28 = 66,781.52/x - Step 3: Cross multiply
193,170.68x = 289,743.28 × 66,781.52 - Step 4: Simplify right side
193,170.68x = 19,349,496,648.19 - Step 5: Solve for x
x = 19,349,496,648.19/193,170.68 - Step 6: Final answer
x = 100,167.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.