Finding the Fourth Proportional to 122,230.72, 168,679.44 and 68,515.84
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Solution
The fourth proportional to 122,230.72, 168,679.44 and 68,515.84 is: 94,552.45
Step by Step Solution
- Step 1: Write the proportion equation
122,230.72 : 168,679.44 = 68,515.84 : x - Step 2: Convert to fraction form
122,230.72/168,679.44 = 68,515.84/x - Step 3: Cross multiply
122,230.72x = 168,679.44 × 68,515.84 - Step 4: Simplify right side
122,230.72x = 11,557,213,522.33 - Step 5: Solve for x
x = 11,557,213,522.33/122,230.72 - Step 6: Final answer
x = 94,552.45
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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.