Finding the Fourth Proportional to 154,924.90, 213,763.17 and 101,288.68
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Solution
The fourth proportional to 154,924.90, 213,763.17 and 101,288.68 is: 139,756.68
Step by Step Solution
- Step 1: Write the proportion equation
154,924.90 : 213,763.17 = 101,288.68 : x - Step 2: Convert to fraction form
154,924.90/213,763.17 = 101,288.68/x - Step 3: Cross multiply
154,924.90x = 213,763.17 × 101,288.68 - Step 4: Simplify right side
154,924.90x = 21,651,789,321.92 - Step 5: Solve for x
x = 21,651,789,321.92/154,924.90 - Step 6: Final answer
x = 139,756.68
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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.