Finding the Fourth Proportional to 127,939.24, 176,569.86 and 71,370.28
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Solution
The fourth proportional to 127,939.24, 176,569.86 and 71,370.28 is: 98,498.63
Step by Step Solution
- Step 1: Write the proportion equation
127,939.24 : 176,569.86 = 71,370.28 : x - Step 2: Convert to fraction form
127,939.24/176,569.86 = 71,370.28/x - Step 3: Cross multiply
127,939.24x = 176,569.86 × 71,370.28 - Step 4: Simplify right side
127,939.24x = 12,601,840,347.76 - Step 5: Solve for x
x = 12,601,840,347.76/127,939.24 - Step 6: Final answer
x = 98,498.63
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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.