Finding the Fourth Proportional to 104,283.68, 143,912.52 and 56,536.92
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Solution
The fourth proportional to 104,283.68, 143,912.52 and 56,536.92 is: 78,021.51
Step by Step Solution
- Step 1: Write the proportion equation
104,283.68 : 143,912.52 = 56,536.92 : x - Step 2: Convert to fraction form
104,283.68/143,912.52 = 56,536.92/x - Step 3: Cross multiply
104,283.68x = 143,912.52 × 56,536.92 - Step 4: Simplify right side
104,283.68x = 8,136,370,630.24 - Step 5: Solve for x
x = 8,136,370,630.24/104,283.68 - Step 6: Final answer
x = 78,021.51
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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.