Finding the Fourth Proportional to 138,544.74, 207,441.73 and 71,845.00
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Solution
The fourth proportional to 138,544.74, 207,441.73 and 71,845.00 is: 107,572.84
Step by Step Solution
- Step 1: Write the proportion equation
138,544.74 : 207,441.73 = 71,845.00 : x - Step 2: Convert to fraction form
138,544.74/207,441.73 = 71,845.00/x - Step 3: Cross multiply
138,544.74x = 207,441.73 × 71,845.00 - Step 4: Simplify right side
138,544.74x = 14,903,651,448.55 - Step 5: Solve for x
x = 14,903,651,448.55/138,544.74 - Step 6: Final answer
x = 107,572.84
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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.