Finding the Fourth Proportional to 162,997.21, 225,009.84 and 102,656.53
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Solution
The fourth proportional to 162,997.21, 225,009.84 and 102,656.53 is: 141,712.42
Step by Step Solution
- Step 1: Write the proportion equation
162,997.21 : 225,009.84 = 102,656.53 : x - Step 2: Convert to fraction form
162,997.21/225,009.84 = 102,656.53/x - Step 3: Cross multiply
162,997.21x = 225,009.84 × 102,656.53 - Step 4: Simplify right side
162,997.21x = 23,098,729,390.26 - Step 5: Solve for x
x = 23,098,729,390.26/162,997.21 - Step 6: Final answer
x = 141,712.42
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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.