Finding the Fourth Proportional to 124,633.44, 171,992.88 and 76,867.68
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Solution
The fourth proportional to 124,633.44, 171,992.88 and 76,867.68 is: 106,076.62
Step by Step Solution
- Step 1: Write the proportion equation
124,633.44 : 171,992.88 = 76,867.68 : x - Step 2: Convert to fraction form
124,633.44/171,992.88 = 76,867.68/x - Step 3: Cross multiply
124,633.44x = 171,992.88 × 76,867.68 - Step 4: Simplify right side
124,633.44x = 13,220,693,662.12 - Step 5: Solve for x
x = 13,220,693,662.12/124,633.44 - Step 6: Final answer
x = 106,076.62
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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.