Finding the Fourth Proportional to 121,193.30, 167,245.16 and 70,212.98
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Solution
The fourth proportional to 121,193.30, 167,245.16 and 70,212.98 is: 96,892.99
Step by Step Solution
- Step 1: Write the proportion equation
121,193.30 : 167,245.16 = 70,212.98 : x - Step 2: Convert to fraction form
121,193.30/167,245.16 = 70,212.98/x - Step 3: Cross multiply
121,193.30x = 167,245.16 × 70,212.98 - Step 4: Simplify right side
121,193.30x = 11,742,781,074.18 - Step 5: Solve for x
x = 11,742,781,074.18/121,193.30 - Step 6: Final answer
x = 96,892.99
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1.5x scale
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.