Finding the Fourth Proportional to 145,161.84, 217,740.83 and 70,288.68
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Solution
The fourth proportional to 145,161.84, 217,740.83 and 70,288.68 is: 105,432.09
Step by Step Solution
- Step 1: Write the proportion equation
145,161.84 : 217,740.83 = 70,288.68 : x - Step 2: Convert to fraction form
145,161.84/217,740.83 = 70,288.68/x - Step 3: Cross multiply
145,161.84x = 217,740.83 × 70,288.68 - Step 4: Simplify right side
145,161.84x = 15,304,715,522.80 - Step 5: Solve for x
x = 15,304,715,522.80/145,161.84 - Step 6: Final answer
x = 105,432.09
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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.