Finding the Fourth Proportional to 121,309.70, 167,367.69 and 73,545.62
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Solution
The fourth proportional to 121,309.70, 167,367.69 and 73,545.62 is: 101,468.89
Step by Step Solution
- Step 1: Write the proportion equation
121,309.70 : 167,367.69 = 73,545.62 : x - Step 2: Convert to fraction form
121,309.70/167,367.69 = 73,545.62/x - Step 3: Cross multiply
121,309.70x = 167,367.69 × 73,545.62 - Step 4: Simplify right side
121,309.70x = 12,309,160,840.47 - Step 5: Solve for x
x = 12,309,160,840.47/121,309.70 - Step 6: Final answer
x = 101,468.89
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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.