Finding the Fourth Proportional to 138,544.74, 207,752.53 and 71,967.00
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Solution
The fourth proportional to 138,544.74, 207,752.53 and 71,967.00 is: 107,916.94
Step by Step Solution
- Step 1: Write the proportion equation
138,544.74 : 207,752.53 = 71,967.00 : x - Step 2: Convert to fraction form
138,544.74/207,752.53 = 71,967.00/x - Step 3: Cross multiply
138,544.74x = 207,752.53 × 71,967.00 - Step 4: Simplify right side
138,544.74x = 14,951,324,927.91 - Step 5: Solve for x
x = 14,951,324,927.91/138,544.74 - Step 6: Final answer
x = 107,916.94
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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.