Finding the Fourth Proportional to 127,859.76, 176,394.48 and 84,859.44
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Solution
The fourth proportional to 127,859.76, 176,394.48 and 84,859.44 is: 117,071.52
Step by Step Solution
- Step 1: Write the proportion equation
127,859.76 : 176,394.48 = 84,859.44 : x - Step 2: Convert to fraction form
127,859.76/176,394.48 = 84,859.44/x - Step 3: Cross multiply
127,859.76x = 176,394.48 × 84,859.44 - Step 4: Simplify right side
127,859.76x = 14,968,736,791.89 - Step 5: Solve for x
x = 14,968,736,791.89/127,859.76 - Step 6: Final answer
x = 117,071.52
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1.5x scale
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.