Finding the Fourth Proportional to 132,781.89, 199,231.71 and 69,586.99
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Solution
The fourth proportional to 132,781.89, 199,231.71 and 69,586.99 is: 104,411.34
Step by Step Solution
- Step 1: Write the proportion equation
132,781.89 : 199,231.71 = 69,586.99 : x - Step 2: Convert to fraction form
132,781.89/199,231.71 = 69,586.99/x - Step 3: Cross multiply
132,781.89x = 199,231.71 × 69,586.99 - Step 4: Simplify right side
132,781.89x = 13,863,935,011.45 - Step 5: Solve for x
x = 13,863,935,011.45/132,781.89 - Step 6: Final answer
x = 104,411.34
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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.