Finding the Fourth Proportional to 104,405.70, 144,079.97 and 56,659.05
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Solution
The fourth proportional to 104,405.70, 144,079.97 and 56,659.05 is: 78,189.55
Step by Step Solution
- Step 1: Write the proportion equation
104,405.70 : 144,079.97 = 56,659.05 : x - Step 2: Convert to fraction form
104,405.70/144,079.97 = 56,659.05/x - Step 3: Cross multiply
104,405.70x = 144,079.97 × 56,659.05 - Step 4: Simplify right side
104,405.70x = 8,163,434,224.23 - Step 5: Solve for x
x = 8,163,434,224.23/104,405.70 - Step 6: Final answer
x = 78,189.55
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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.