Finding the Fourth Proportional to 127,128.57, 175,469.16 and 73,444.74
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Solution
The fourth proportional to 127,128.57, 175,469.16 and 73,444.74 is: 101,372.07
Step by Step Solution
- Step 1: Write the proportion equation
127,128.57 : 175,469.16 = 73,444.74 : x - Step 2: Convert to fraction form
127,128.57/175,469.16 = 73,444.74/x - Step 3: Cross multiply
127,128.57x = 175,469.16 × 73,444.74 - Step 4: Simplify right side
127,128.57x = 12,887,286,834.22 - Step 5: Solve for x
x = 12,887,286,834.22/127,128.57 - Step 6: Final answer
x = 101,372.07
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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.