Finding the Fourth Proportional to 159,536.25, 220,161.47 and 87,918.84
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Solution
The fourth proportional to 159,536.25, 220,161.47 and 87,918.84 is: 121,328.80
Step by Step Solution
- Step 1: Write the proportion equation
159,536.25 : 220,161.47 = 87,918.84 : x - Step 2: Convert to fraction form
159,536.25/220,161.47 = 87,918.84/x - Step 3: Cross multiply
159,536.25x = 220,161.47 × 87,918.84 - Step 4: Simplify right side
159,536.25x = 19,356,341,055.09 - Step 5: Solve for x
x = 19,356,341,055.09/159,536.25 - Step 6: Final answer
x = 121,328.80
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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.