Finding the Fourth Proportional to 127,689.05, 176,204.09 and 73,238.42
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Solution
The fourth proportional to 127,689.05, 176,204.09 and 73,238.42 is: 101,065.12
Step by Step Solution
- Step 1: Write the proportion equation
127,689.05 : 176,204.09 = 73,238.42 : x - Step 2: Convert to fraction form
127,689.05/176,204.09 = 73,238.42/x - Step 3: Cross multiply
127,689.05x = 176,204.09 × 73,238.42 - Step 4: Simplify right side
127,689.05x = 12,904,909,772.74 - Step 5: Solve for x
x = 12,904,909,772.74/127,689.05 - Step 6: Final answer
x = 101,065.12
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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.