Finding the Fourth Proportional to 159,921.24, 220,694.76 and 88,305.84
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Solution
The fourth proportional to 159,921.24, 220,694.76 and 88,305.84 is: 121,863.96
Step by Step Solution
- Step 1: Write the proportion equation
159,921.24 : 220,694.76 = 88,305.84 : x - Step 2: Convert to fraction form
159,921.24/220,694.76 = 88,305.84/x - Step 3: Cross multiply
159,921.24x = 220,694.76 × 88,305.84 - Step 4: Simplify right side
159,921.24x = 19,488,636,165.40 - Step 5: Solve for x
x = 19,488,636,165.40/159,921.24 - Step 6: Final answer
x = 121,863.96
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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.