Finding the Fourth Proportional to 122,749.62, 169,392.90 and 69,034.62
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Solution
The fourth proportional to 122,749.62, 169,392.90 and 69,034.62 is: 95,266.89
Step by Step Solution
- Step 1: Write the proportion equation
122,749.62 : 169,392.90 = 69,034.62 : x - Step 2: Convert to fraction form
122,749.62/169,392.90 = 69,034.62/x - Step 3: Cross multiply
122,749.62x = 169,392.90 × 69,034.62 - Step 4: Simplify right side
122,749.62x = 11,693,974,482.20 - Step 5: Solve for x
x = 11,693,974,482.20/122,749.62 - Step 6: Final answer
x = 95,266.89
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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.