Finding the Fourth Proportional to 121,670.57, 167,903.62 and 67,956.36
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Solution
The fourth proportional to 121,670.57, 167,903.62 and 67,956.36 is: 93,778.79
Step by Step Solution
- Step 1: Write the proportion equation
121,670.57 : 167,903.62 = 67,956.36 : x - Step 2: Convert to fraction form
121,670.57/167,903.62 = 67,956.36/x - Step 3: Cross multiply
121,670.57x = 167,903.62 × 67,956.36 - Step 4: Simplify right side
121,670.57x = 11,410,118,676.13 - Step 5: Solve for x
x = 11,410,118,676.13/121,670.57 - Step 6: Final answer
x = 93,778.79
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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.