Finding the Fourth Proportional to 168,201.99, 232,116.91 and 91,720.82
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Solution
The fourth proportional to 168,201.99, 232,116.91 and 91,720.82 is: 126,573.73
Step by Step Solution
- Step 1: Write the proportion equation
168,201.99 : 232,116.91 = 91,720.82 : x - Step 2: Convert to fraction form
168,201.99/232,116.91 = 91,720.82/x - Step 3: Cross multiply
168,201.99x = 232,116.91 × 91,720.82 - Step 4: Simplify right side
168,201.99x = 21,289,953,672.06 - Step 5: Solve for x
x = 21,289,953,672.06/168,201.99 - Step 6: Final answer
x = 126,573.73
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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.