Finding the Fourth Proportional to 187,956.65, 281,986.99 and 86,785.65
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Solution
The fourth proportional to 187,956.65, 281,986.99 and 86,785.65 is: 130,202.49
Step by Step Solution
- Step 1: Write the proportion equation
187,956.65 : 281,986.99 = 86,785.65 : x - Step 2: Convert to fraction form
187,956.65/281,986.99 = 86,785.65/x - Step 3: Cross multiply
187,956.65x = 281,986.99 × 86,785.65 - Step 4: Simplify right side
187,956.65x = 24,472,424,001.73 - Step 5: Solve for x
x = 24,472,424,001.73/187,956.65 - Step 6: Final answer
x = 130,202.49
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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.