Finding the Fourth Proportional to 159,486.24, 220,091.55 and 87,866.09
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Solution
The fourth proportional to 159,486.24, 220,091.55 and 87,866.09 is: 121,255.51
Step by Step Solution
- Step 1: Write the proportion equation
159,486.24 : 220,091.55 = 87,866.09 : x - Step 2: Convert to fraction form
159,486.24/220,091.55 = 87,866.09/x - Step 3: Cross multiply
159,486.24x = 220,091.55 × 87,866.09 - Step 4: Simplify right side
159,486.24x = 19,338,584,696.30 - Step 5: Solve for x
x = 19,338,584,696.30/159,486.24 - Step 6: Final answer
x = 121,255.51
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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.