Finding the Fourth Proportional to 154,782.74, 232,135.65 and 87,344.38
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Solution
The fourth proportional to 154,782.74, 232,135.65 and 87,344.38 is: 130,994.87
Step by Step Solution
- Step 1: Write the proportion equation
154,782.74 : 232,135.65 = 87,344.38 : x - Step 2: Convert to fraction form
154,782.74/232,135.65 = 87,344.38/x - Step 3: Cross multiply
154,782.74x = 232,135.65 × 87,344.38 - Step 4: Simplify right side
154,782.74x = 20,275,744,425.15 - Step 5: Solve for x
x = 20,275,744,425.15/154,782.74 - Step 6: Final answer
x = 130,994.87
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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.