Finding the Fourth Proportional to 121,539.91, 167,725.11 and 67,092.12
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Solution
The fourth proportional to 121,539.91, 167,725.11 and 67,092.12 is: 92,587.14
Step by Step Solution
- Step 1: Write the proportion equation
121,539.91 : 167,725.11 = 67,092.12 : x - Step 2: Convert to fraction form
121,539.91/167,725.11 = 67,092.12/x - Step 3: Cross multiply
121,539.91x = 167,725.11 × 67,092.12 - Step 4: Simplify right side
121,539.91x = 11,253,033,207.13 - Step 5: Solve for x
x = 11,253,033,207.13/121,539.91 - Step 6: Final answer
x = 92,587.14
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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.