Finding the Fourth Proportional to 189,677.99, 261,752.53 and 103,635.08
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Solution
The fourth proportional to 189,677.99, 261,752.53 and 103,635.08 is: 143,014.72
Step by Step Solution
- Step 1: Write the proportion equation
189,677.99 : 261,752.53 = 103,635.08 : x - Step 2: Convert to fraction form
189,677.99/261,752.53 = 103,635.08/x - Step 3: Cross multiply
189,677.99x = 261,752.53 × 103,635.08 - Step 4: Simplify right side
189,677.99x = 27,126,744,386.75 - Step 5: Solve for x
x = 27,126,744,386.75/189,677.99 - Step 6: Final answer
x = 143,014.72
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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.