Finding the Fourth Proportional to 122,464.58, 169,001.02 and 68,749.70
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Solution
The fourth proportional to 122,464.58, 169,001.02 and 68,749.70 is: 94,874.53
Step by Step Solution
- Step 1: Write the proportion equation
122,464.58 : 169,001.02 = 68,749.70 : x - Step 2: Convert to fraction form
122,464.58/169,001.02 = 68,749.70/x - Step 3: Cross multiply
122,464.58x = 169,001.02 × 68,749.70 - Step 4: Simplify right side
122,464.58x = 11,618,769,424.69 - Step 5: Solve for x
x = 11,618,769,424.69/122,464.58 - Step 6: Final answer
x = 94,874.53
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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.