Finding the Fourth Proportional to 122,353.56, 168,860.70 and 68,653.08
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Solution
The fourth proportional to 122,353.56, 168,860.70 and 68,653.08 is: 94,748.43
Step by Step Solution
- Step 1: Write the proportion equation
122,353.56 : 168,860.70 = 68,653.08 : x - Step 2: Convert to fraction form
122,353.56/168,860.70 = 68,653.08/x - Step 3: Cross multiply
122,353.56x = 168,860.70 × 68,653.08 - Step 4: Simplify right side
122,353.56x = 11,592,807,145.96 - Step 5: Solve for x
x = 11,592,807,145.96/122,353.56 - Step 6: Final answer
x = 94,748.43
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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.