Finding the Fourth Proportional to 121,596.01, 167,720.57 and 105,653.05
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Solution
The fourth proportional to 121,596.01, 167,720.57 and 105,653.05 is: 145,730.02
Step by Step Solution
- Step 1: Write the proportion equation
121,596.01 : 167,720.57 = 105,653.05 : x - Step 2: Convert to fraction form
121,596.01/167,720.57 = 105,653.05/x - Step 3: Cross multiply
121,596.01x = 167,720.57 × 105,653.05 - Step 4: Simplify right side
121,596.01x = 17,720,189,239.97 - Step 5: Solve for x
x = 17,720,189,239.97/121,596.01 - Step 6: Final answer
x = 145,730.02
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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.