Finding the Fourth Proportional to 121,139.16, 167,177.97 and 73,396.95
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Solution
The fourth proportional to 121,139.16, 167,177.97 and 73,396.95 is: 101,291.38
Step by Step Solution
- Step 1: Write the proportion equation
121,139.16 : 167,177.97 = 73,396.95 : x - Step 2: Convert to fraction form
121,139.16/167,177.97 = 73,396.95/x - Step 3: Cross multiply
121,139.16x = 167,177.97 × 73,396.95 - Step 4: Simplify right side
121,139.16x = 12,270,353,105.19 - Step 5: Solve for x
x = 12,270,353,105.19/121,139.16 - Step 6: Final answer
x = 101,291.38
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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.