Finding the Fourth Proportional to 128,584.48, 177,449.44 and 73,392.70
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Solution
The fourth proportional to 128,584.48, 177,449.44 and 73,392.70 is: 101,283.56
Step by Step Solution
- Step 1: Write the proportion equation
128,584.48 : 177,449.44 = 73,392.70 : x - Step 2: Convert to fraction form
128,584.48/177,449.44 = 73,392.70/x - Step 3: Cross multiply
128,584.48x = 177,449.44 × 73,392.70 - Step 4: Simplify right side
128,584.48x = 13,023,493,515.09 - Step 5: Solve for x
x = 13,023,493,515.09/128,584.48 - Step 6: Final answer
x = 101,283.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.