Finding the Fourth Proportional to 117,239.47, 161,790.21 and 63,525.94
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Solution
The fourth proportional to 117,239.47, 161,790.21 and 63,525.94 is: 87,665.66
Step by Step Solution
- Step 1: Write the proportion equation
117,239.47 : 161,790.21 = 63,525.94 : x - Step 2: Convert to fraction form
117,239.47/161,790.21 = 63,525.94/x - Step 3: Cross multiply
117,239.47x = 161,790.21 × 63,525.94 - Step 4: Simplify right side
117,239.47x = 10,277,874,768.57 - Step 5: Solve for x
x = 10,277,874,768.57/117,239.47 - Step 6: Final answer
x = 87,665.66
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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.