Finding the Fourth Proportional to 104,405.63, 144,079.86 and 56,658.99
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Solution
The fourth proportional to 104,405.63, 144,079.86 and 56,658.99 is: 78,189.47
Step by Step Solution
- Step 1: Write the proportion equation
104,405.63 : 144,079.86 = 56,658.99 : x - Step 2: Convert to fraction form
104,405.63/144,079.86 = 56,658.99/x - Step 3: Cross multiply
104,405.63x = 144,079.86 × 56,658.99 - Step 4: Simplify right side
104,405.63x = 8,163,420,099.71 - Step 5: Solve for x
x = 8,163,420,099.71/104,405.63 - Step 6: Final answer
x = 78,189.47
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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.