Finding the Fourth Proportional to 128,828.56, 177,693.46 and 124,493.44
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Solution
The fourth proportional to 128,828.56, 177,693.46 and 124,493.44 is: 171,714.02
Step by Step Solution
- Step 1: Write the proportion equation
128,828.56 : 177,693.46 = 124,493.44 : x - Step 2: Convert to fraction form
128,828.56/177,693.46 = 124,493.44/x - Step 3: Cross multiply
128,828.56x = 177,693.46 × 124,493.44 - Step 4: Simplify right side
128,828.56x = 22,121,670,100.90 - Step 5: Solve for x
x = 22,121,670,100.90/128,828.56 - Step 6: Final answer
x = 171,714.02
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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.