Finding the Fourth Proportional to 121,444.68, 167,613.99 and 73,729.80
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Solution
The fourth proportional to 121,444.68, 167,613.99 and 73,729.80 is: 101,759.47
Step by Step Solution
- Step 1: Write the proportion equation
121,444.68 : 167,613.99 = 73,729.80 : x - Step 2: Convert to fraction form
121,444.68/167,613.99 = 73,729.80/x - Step 3: Cross multiply
121,444.68x = 167,613.99 × 73,729.80 - Step 4: Simplify right side
121,444.68x = 12,358,145,959.90 - Step 5: Solve for x
x = 12,358,145,959.90/121,444.68 - Step 6: Final answer
x = 101,759.47
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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.