Finding the Fourth Proportional to 175,791.42, 263,699.43 and 87,021.09
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Solution
The fourth proportional to 175,791.42, 263,699.43 and 87,021.09 is: 130,537.72
Step by Step Solution
- Step 1: Write the proportion equation
175,791.42 : 263,699.43 = 87,021.09 : x - Step 2: Convert to fraction form
175,791.42/263,699.43 = 87,021.09/x - Step 3: Cross multiply
175,791.42x = 263,699.43 × 87,021.09 - Step 4: Simplify right side
175,791.42x = 22,947,411,830.98 - Step 5: Solve for x
x = 22,947,411,830.98/175,791.42 - Step 6: Final answer
x = 130,537.72
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1.5x scale
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.