Finding the Fourth Proportional to 128,803.08, 193,260.24 and 69,680.40
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Solution
The fourth proportional to 128,803.08, 193,260.24 and 69,680.40 is: 104,550.69
Step by Step Solution
- Step 1: Write the proportion equation
128,803.08 : 193,260.24 = 69,680.40 : x - Step 2: Convert to fraction form
128,803.08/193,260.24 = 69,680.40/x - Step 3: Cross multiply
128,803.08x = 193,260.24 × 69,680.40 - Step 4: Simplify right side
128,803.08x = 13,466,450,827.30 - Step 5: Solve for x
x = 13,466,450,827.30/128,803.08 - Step 6: Final answer
x = 104,550.69
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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.