Finding the Fourth Proportional to 159,593.14, 220,238.43 and 86,996.17
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Solution
The fourth proportional to 159,593.14, 220,238.43 and 86,996.17 is: 120,054.66
Step by Step Solution
- Step 1: Write the proportion equation
159,593.14 : 220,238.43 = 86,996.17 : x - Step 2: Convert to fraction form
159,593.14/220,238.43 = 86,996.17/x - Step 3: Cross multiply
159,593.14x = 220,238.43 × 86,996.17 - Step 4: Simplify right side
159,593.14x = 19,159,899,896.81 - Step 5: Solve for x
x = 19,159,899,896.81/159,593.14 - Step 6: Final answer
x = 120,054.66
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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.