Finding the Fourth Proportional to 120,853.08, 180,489.30 and 102,892.26
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Solution
The fourth proportional to 120,853.08, 180,489.30 and 102,892.26 is: 153,665.52
Step by Step Solution
- Step 1: Write the proportion equation
120,853.08 : 180,489.30 = 102,892.26 : x - Step 2: Convert to fraction form
120,853.08/180,489.30 = 102,892.26/x - Step 3: Cross multiply
120,853.08x = 180,489.30 × 102,892.26 - Step 4: Simplify right side
120,853.08x = 18,570,951,982.82 - Step 5: Solve for x
x = 18,570,951,982.82/120,853.08 - Step 6: Final answer
x = 153,665.52
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.