Finding the Fourth Proportional to 187,521.75, 258,782.45 and 102,636.99
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Solution
The fourth proportional to 187,521.75, 258,782.45 and 102,636.99 is: 141,640.38
Step by Step Solution
- Step 1: Write the proportion equation
187,521.75 : 258,782.45 = 102,636.99 : x - Step 2: Convert to fraction form
187,521.75/258,782.45 = 102,636.99/x - Step 3: Cross multiply
187,521.75x = 258,782.45 × 102,636.99 - Step 4: Simplify right side
187,521.75x = 26,560,651,219.64 - Step 5: Solve for x
x = 26,560,651,219.64/187,521.75 - Step 6: Final answer
x = 141,640.38
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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.