Finding the Fourth Proportional to 159,119.23, 219,590.19 and 87,504.70
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Solution
The fourth proportional to 159,119.23, 219,590.19 and 87,504.70 is: 120,759.59
Step by Step Solution
- Step 1: Write the proportion equation
159,119.23 : 219,590.19 = 87,504.70 : x - Step 2: Convert to fraction form
159,119.23/219,590.19 = 87,504.70/x - Step 3: Cross multiply
159,119.23x = 219,590.19 × 87,504.70 - Step 4: Simplify right side
159,119.23x = 19,215,173,698.89 - Step 5: Solve for x
x = 19,215,173,698.89/159,119.23 - Step 6: Final answer
x = 120,759.59
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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.