Finding the Fourth Proportional to 122,677.68, 169,291.28 and 68,964.96
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Solution
The fourth proportional to 122,677.68, 169,291.28 and 68,964.96 is: 95,169.44
Step by Step Solution
- Step 1: Write the proportion equation
122,677.68 : 169,291.28 = 68,964.96 : x - Step 2: Convert to fraction form
122,677.68/169,291.28 = 68,964.96/x - Step 3: Cross multiply
122,677.68x = 169,291.28 × 68,964.96 - Step 4: Simplify right side
122,677.68x = 11,675,166,353.55 - Step 5: Solve for x
x = 11,675,166,353.55/122,677.68 - Step 6: Final answer
x = 95,169.44
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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.