Finding the Fourth Proportional to 192,782.90, 266,136.92 and 121,202.39
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Solution
The fourth proportional to 192,782.90, 266,136.92 and 121,202.39 is: 167,319.98
Step by Step Solution
- Step 1: Write the proportion equation
192,782.90 : 266,136.92 = 121,202.39 : x - Step 2: Convert to fraction form
192,782.90/266,136.92 = 121,202.39/x - Step 3: Cross multiply
192,782.90x = 266,136.92 × 121,202.39 - Step 4: Simplify right side
192,782.90x = 32,256,430,771.24 - Step 5: Solve for x
x = 32,256,430,771.24/192,782.90 - Step 6: Final answer
x = 167,319.98
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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.