Finding the Fourth Proportional to 104,439.71, 144,126.98 and 56,693.09
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Solution
The fourth proportional to 104,439.71, 144,126.98 and 56,693.09 is: 78,236.56
Step by Step Solution
- Step 1: Write the proportion equation
104,439.71 : 144,126.98 = 56,693.09 : x - Step 2: Convert to fraction form
104,439.71/144,126.98 = 56,693.09/x - Step 3: Cross multiply
104,439.71x = 144,126.98 × 56,693.09 - Step 4: Simplify right side
104,439.71x = 8,171,003,990.30 - Step 5: Solve for x
x = 8,171,003,990.30/104,439.71 - Step 6: Final answer
x = 78,236.56
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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.