Finding the Fourth Proportional to 117,941.80, 176,912.70 and 115,997.80
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Solution
The fourth proportional to 117,941.80, 176,912.70 and 115,997.80 is: 173,996.70
Step by Step Solution
- Step 1: Write the proportion equation
117,941.80 : 176,912.70 = 115,997.80 : x - Step 2: Convert to fraction form
117,941.80/176,912.70 = 115,997.80/x - Step 3: Cross multiply
117,941.80x = 176,912.70 × 115,997.80 - Step 4: Simplify right side
117,941.80x = 20,521,483,992.06 - Step 5: Solve for x
x = 20,521,483,992.06/117,941.80 - Step 6: Final answer
x = 173,996.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.