Finding the Fourth Proportional to 102,126.26, 153,190.43 and 31,060.42
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Solution
The fourth proportional to 102,126.26, 153,190.43 and 31,060.42 is: 46,590.95
Step by Step Solution
- Step 1: Write the proportion equation
102,126.26 : 153,190.43 = 31,060.42 : x - Step 2: Convert to fraction form
102,126.26/153,190.43 = 31,060.42/x - Step 3: Cross multiply
102,126.26x = 153,190.43 × 31,060.42 - Step 4: Simplify right side
102,126.26x = 4,758,159,095.78 - Step 5: Solve for x
x = 4,758,159,095.78/102,126.26 - Step 6: Final answer
x = 46,590.95
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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.