Finding the Fourth Proportional to 121,175.48, 167,197.74 and 73,401.08
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Solution
The fourth proportional to 121,175.48, 167,197.74 and 73,401.08 is: 101,278.70
Step by Step Solution
- Step 1: Write the proportion equation
121,175.48 : 167,197.74 = 73,401.08 : x - Step 2: Convert to fraction form
121,175.48/167,197.74 = 73,401.08/x - Step 3: Cross multiply
121,175.48x = 167,197.74 × 73,401.08 - Step 4: Simplify right side
121,175.48x = 12,272,494,689.56 - Step 5: Solve for x
x = 12,272,494,689.56/121,175.48 - Step 6: Final answer
x = 101,278.70
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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.