Finding the Fourth Proportional to 105,227.97, 145,209.17 and 57,472.09
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Solution
The fourth proportional to 105,227.97, 145,209.17 and 57,472.09 is: 79,308.52
Step by Step Solution
- Step 1: Write the proportion equation
105,227.97 : 145,209.17 = 57,472.09 : x - Step 2: Convert to fraction form
105,227.97/145,209.17 = 57,472.09/x - Step 3: Cross multiply
105,227.97x = 145,209.17 × 57,472.09 - Step 4: Simplify right side
105,227.97x = 8,345,474,267.72 - Step 5: Solve for x
x = 8,345,474,267.72/105,227.97 - Step 6: Final answer
x = 79,308.52
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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.