Finding the Fourth Proportional to 143,957.19, 215,935.79 and 73,791.75
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Solution
The fourth proportional to 143,957.19, 215,935.79 and 73,791.75 is: 110,687.63
Step by Step Solution
- Step 1: Write the proportion equation
143,957.19 : 215,935.79 = 73,791.75 : x - Step 2: Convert to fraction form
143,957.19/215,935.79 = 73,791.75/x - Step 3: Cross multiply
143,957.19x = 215,935.79 × 73,791.75 - Step 4: Simplify right side
143,957.19x = 15,934,279,831.73 - Step 5: Solve for x
x = 15,934,279,831.73/143,957.19 - Step 6: Final answer
x = 110,687.63
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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.