Finding the Fourth Proportional to 159,953.12, 220,735.68 and 88,331.84
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Solution
The fourth proportional to 159,953.12, 220,735.68 and 88,331.84 is: 121,898.15
Step by Step Solution
- Step 1: Write the proportion equation
159,953.12 : 220,735.68 = 88,331.84 : x - Step 2: Convert to fraction form
159,953.12/220,735.68 = 88,331.84/x - Step 3: Cross multiply
159,953.12x = 220,735.68 × 88,331.84 - Step 4: Simplify right side
159,953.12x = 19,497,988,768.05 - Step 5: Solve for x
x = 19,497,988,768.05/159,953.12 - Step 6: Final answer
x = 121,898.15
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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.