Finding the Fourth Proportional to 116,961.18, 161,406.33 and 63,246.09
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Solution
The fourth proportional to 116,961.18, 161,406.33 and 63,246.09 is: 87,279.55
Step by Step Solution
- Step 1: Write the proportion equation
116,961.18 : 161,406.33 = 63,246.09 : x - Step 2: Convert to fraction form
116,961.18/161,406.33 = 63,246.09/x - Step 3: Cross multiply
116,961.18x = 161,406.33 × 63,246.09 - Step 4: Simplify right side
116,961.18x = 10,208,319,273.75 - Step 5: Solve for x
x = 10,208,319,273.75/116,961.18 - Step 6: Final answer
x = 87,279.55
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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.