Finding the Fourth Proportional to 127,868.97, 176,468.76 and 74,153.49
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Solution
The fourth proportional to 127,868.97, 176,468.76 and 74,153.49 is: 102,337.37
Step by Step Solution
- Step 1: Write the proportion equation
127,868.97 : 176,468.76 = 74,153.49 : x - Step 2: Convert to fraction form
127,868.97/176,468.76 = 74,153.49/x - Step 3: Cross multiply
127,868.97x = 176,468.76 × 74,153.49 - Step 4: Simplify right side
127,868.97x = 13,085,774,429.97 - Step 5: Solve for x
x = 13,085,774,429.97/127,868.97 - Step 6: Final answer
x = 102,337.37
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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.