Finding the Fourth Proportional to 172,606.88, 258,789.99 and 76,491.76
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Solution
The fourth proportional to 172,606.88, 258,789.99 and 76,491.76 is: 114,684.32
Step by Step Solution
- Step 1: Write the proportion equation
172,606.88 : 258,789.99 = 76,491.76 : x - Step 2: Convert to fraction form
172,606.88/258,789.99 = 76,491.76/x - Step 3: Cross multiply
172,606.88x = 258,789.99 × 76,491.76 - Step 4: Simplify right side
172,606.88x = 19,795,301,805.48 - Step 5: Solve for x
x = 19,795,301,805.48/172,606.88 - Step 6: Final answer
x = 114,684.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.