Finding the Fourth Proportional to 197,630.93, 272,730.37 and 106,986.87
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Solution
The fourth proportional to 197,630.93, 272,730.37 and 106,986.87 is: 147,641.71
Step by Step Solution
- Step 1: Write the proportion equation
197,630.93 : 272,730.37 = 106,986.87 : x - Step 2: Convert to fraction form
197,630.93/272,730.37 = 106,986.87/x - Step 3: Cross multiply
197,630.93x = 272,730.37 × 106,986.87 - Step 4: Simplify right side
197,630.93x = 29,178,568,640.24 - Step 5: Solve for x
x = 29,178,568,640.24/197,630.93 - Step 6: Final answer
x = 147,641.71
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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.